Engineering Mechanics Corporation of Columbus
Old Publications
    2005

  1. D. Rudland, W. Cheng, G. Wilkowski and W. Norris, “Effects Of Weld Geometry On Residual Stress and Crack Driving Force For Centerhole Control Rod Drive Mechanism Nozzles – Part II Circumferential Cracked K-solutions,” PVP2005-71078, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  2. W. Cheng, D. Rudland G. Wilkowski and W. Norris, “Effects Of Weld Geometry On Residual Stress and Crack Driving Force For Centerhole Control Rod Drive Mechanism Nozzles – Part I Weld Residual Stress,” PVP2005-71077, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  3. Wilkowski, G., Rudland, D.L. and Wolterman, R.,“Predicting the Brittle-to-Ductile Fracture Initiation Transition Temperature for Surface-Cracked Pipe from Charpy Data,” PVP2005-71199, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  4. Wilkowski, G., Rudland, D.L., Scott, P.M. and Olson R., “Effect of Secondary Stresses on Pipe Fracture,” PVP2005-71330, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  5. Wilkowski, G., Wolterman, R and Rudland, D.L., “Impact of PWSCC and Current Leak Detection on Leak-Before-Break Acceptance,” PVP2005-71200, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  6. Williams, C., Scott, P.M., Brust, F., Wilkowski, G. and Rudland, D.L., “Validation of an Estimation Procedure to Predict the Quasi-static Brittle-to-Ductile Fracture Initiation Transition Temperature (FITT) for Ferritic Piping,” PVP2005-71302, Proceedings of PVP2005, 2005 ASME Pressure Vessels and Piping Division Conference, July 17-21, 2005, Denver, Colorado USA.


  7. D. Rudland, G. Wilkowski, S. Kawaguchi and N. Hagiwara, “Determination of Conditional Probability of Dynamic Axial Crack Arrest for Conventionally-Rolled, Lower-Toughness Linepipe Materials,” Journal of Pressure Vessel Technology, May 2005, Volume 127, pp. 143-150.


  8. G. Wilkowski, D. Rudland, P. Mincer, B. Metrovich and D. Rider, "Predicting the Brittle-to-Ductile Fracture Initiation Transition Temperature for Older Linepipe with Surface-Crack or Through-Wall Cracks from Charpy Data," Proceeding of PRCI-ERPG-APIA 15th Joint Technical Meeting on Pipeline Research, May 15-20, 2005.


  9. G. Wilkowski, D. Rudland, W. Cheng, Y. Chen, Y. Wang, P. Scott and F. Brust, "Summary of NRC Funded Efforts Involving Alloy 600 Base Material and Weldments for Piping and CRDM Applications," Proccedings of 2005 PWSCC of Alloy 600 International Conference and Exhibit Show, March 7-10, 2005.


    10. 2004

  10. Kupperman, D. S., Sheen, S. H., Shack, W. J., Diercks D. R., Krishnaswamy, P., Rudland, D. L., and Wilkowski, G. M., "Barrier Integrity Research Program: Final Report," NUREG/CR-6861, December, 2004


  11. Chen, Y., Rudland, D. and Wilkowski, G., “Impact of Welding Sequence on the CRDM Nozzle-to-Vessel Weld Stress Analysis,” Proceedings of ASME-PVP 2004: ASME/JSME Pressure Vessels And Piping Conference, Hyatt Regency, La Jolla at Aventine, San Diego, California, July 25 – 29, 2004.


  12. C. Williams, F. Brust, P. Scott, D. Rudland, G. Wilkowski, R. Tregoning and C. Santos, “The Impact of Fracture Toughness and Weld Residual Stresses of Inconel 82/182 Bimetal Welds on Leak-Before-Break Behavior,” Proceedings of ASME-PVP 2004: ASME/JSME Pressure Vessels And Piping Conference, Hyatt Regency, La Jolla at Aventine, San Diego, California, July 25 – 29, 2004.


  13. Hoang, P. H. and Wilkowski, G. M., “Validation of Pipe Flaw Evaluation Procedures in Section XI of the ASME Code Against Pipe Fracture Experiments,” Proceedings of ASME-PVP 2004: ASME/JSME Pressure Vessels And Piping Conference, Hyatt Regency, La Jolla at Aventine, San Diego, California, July 25 – 29, 2004.


  14. D. Rudland, G. Wilkowski Y.-Y. Wang and W. Norris, “Analysis of Circumferential Through-Wall Crack K-solutions for CRDM Nozzles,” International Journal of Pressure Vessels and Piping, 81 (2004) pp. 961-971.


  15. D.L. Rudland, Wang, Y.Y., Wilkowski, G.M. and Horsley, D., “Characterizing Dynamic Fracture Toughness of Linepipe Steels Using the Pressed-Notch Drop Weight Tear Test Specimen,” Engineering Fracture Mechanics 71 (2004) 2533-2549.


  16. Wang, Y.-Y., Cheng, W., McLamb, M., Horsley, D., Zhou, J. and Glover, A., "Tensile Strain Limits of Girth Welds with Surface-Breaking Defects Part I an Analytical Framework," in Pipeline Technology, Proceedings of the 4th International Conference on Pipeline Technology, Edited by Rudi Denys, Ostend, Belgium, May 9-13, 2004.


  17. Wang, Y.-Y., Horsley, D., Cheng, W., Glover, A., McLamb, M. and Zhou, J., "Tensile Strain Limits of Girth Welds with Surface-Breaking Defects Part II Experimental Correlation and Validation," in Pipeline Technology, Proceedings of the 4th International Conference on Pipeline Technology, Edited by Rudi Denys, Ostend, Belgium, May 9-13, 2004.


  18. D. Rudland, G. Wilkowski, S. Kawaguchi and N. Hagiwara, “Determination of Conditional Probability of Dynamic Axial Crack Arrest for Conventionally-Rolled, Lower-Toughness Linepipe Materials” Proceedings of the International Pipeline Conference 2004, Calgary, Alberta, Canada, October 4-8, 2004.


  19. Horsley, D. and Wang, Y.-Y., "Weld Mismatch Effects on the Strain Limits of X100 Girth Welds," in Pipeline Technology, Proceedings of the 4th International Conference on Pipeline Technology, Edited by Rudi Denys, Oostende, Belgium, May 9-12, 2004.


  20. Wang, Y.-Y. and Horsley, D., "Application of Constraint-Sensitive Fracture Mechanics to the Assessment of Girth Weld Integrity," Proceedings of the International Pipeline Conference 2004, Calgary, Alberta, Canada, October 4-8, 2004.


  21. Wang, Y.-Y., Cheng, W. and Horsley, D.,"Tensile Strain Limits of Buried Defects in Pipeline Girth Welds," Proceedings of the International Pipeline Conference 2004, Calgary, Alberta, Canada, October 4-8, 2004.


  22. Cheng, W., Wang, Y.-Y., W. Amend and Swatzel, J.,"Weld Microstructure and Hardness Prediction for In-Service Hot Tap Welds," Proceedings of the International Pipeline Conference 2004, Calgary, Alberta, Canada, October 4-8, 2004.


  23. Wang, Y.-Y. and Rapp, S.,"Weldability of High Strength and Enhanced Hardenability Steels," Proceedings of the International Pipeline Conference 2004, Calgary, Alberta, Canada, October 4-8, 2004.


    24. 2003

  24. Rudland, D. L., Wilkowski, G. M., Feng, Z., Wang, Y.-Y., Horsley, D. and Glover A.,“Experimental Investigation of CTOA in Linepipe Steels,” Engineering Fracture Mechanics, Vol. 30, 2003, pp. 567-577.


  25. Rudland, D., Wang, Y.-Y., Feng, Z., Norris, W., and Wilkowski, G., “Circumferential-Crack-Driving-Force Solutions for CRDM Nozzles,” 17th SMiRT Conference, Prague, Czech, August 2003.


  26. P. Scott, R. Olson, G. Wilkowski, and T. Santos, “Development of the Technical Basis for a New Regulatory Guide,” 17th SMiRT Conference, Prague, Czech, August 2003.


  27. R. J. Olson, R. A. Morbitzer, P. M. Scott, Z. Feng and G. M. Wilkowski, “Practical Application of Restraint of Pressure-Induced Bending Phenomenon in Leak Rate Calculations,” 17th SMiRT Conference, Prague, Czech, August 2003.


  28. D. Rudland, R. Wolterman, and G. Wilkowski, “Impact of PWSCC and Current Leak Detection on Leak-Before-Break,” Proceedings of USNRC conference of Vessel Penetration Inspection, Cracking and Repairs, September 29-October 2, 2003.


  29. Wang, Y.-Y. and Horsley, D. J.,“Tensile Strain Limits of Pipelines,” Proceedings of EPRG-PRCI-APIA 14th Joint Technical Meeting on Pipeline Research, Berlin, German, May 19-23, 2003.


  30. Wang, Y.-Y., Cheng, W., Rudland, D. L. and Horsley, D. J., “Assessment of Buried Planar Defects,” Proceedings ofEPRG-PRCI-APIA 14th Joint Technical Meeting on Pipeline Research, Berlin, German, May 19-23, 2003.


  31. D. Rudland, G. Wilkowski Y.-Y. Wang and W. Norris, “Analysis of Weld Residual Stresses and Circumferential Through-Wall Crack K-solutions for CRDM Nozzles,”NRC “Vessel Head Penetration Inspection, Cracking, and Repair” Conference Proceeding, September 29-October 2, 2003. NUREG/CP-0180, March 2003


    32. 2002

  32. Rudland D.L., Wilkowski, G. and Scott, P.,“Effects of Crack Morphology Parameters on Leak-rate Calculations in LBB Evaluations,” International Journal of Pressure Vessels and Piping,79 (2002) 99-102.


  33. G. Wilkowski, D. Rudland and Y.-Y. Wang, G. Wilkowski, A. Glover, D. Horsley and B. Rothwell,“Determination of the Region of Steady-State Crack Growth from Impact Tests,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002


  34. D. Rudland, Z. Feng, Y.-Y. Wang, G. Wilkowski, A. Glover, D. Horsley and B. Rothwell, “Investigation into the Use of a Single Specimen for the Determination of Dynamic Steady State Propagation Resistance in High Toughness Linepipe Steels,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002.


  35. D. Rudland, Y.-Y. Wang, G. Wilkowski, A. Glover, D. Horsley and B. Rothwell, “Development of a Procedure for the Calculation of J-R curves from Pressed-Notch Drop Weight Tear Test Specimens,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002.


  36. Y.-Y. Wang, D. Rudland, R. Denys and D. Horsley, “A Preliminary Strain-Based Design Criterion for Pipeline Girth Welds,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002.


  37. Y.-Y. Wang, J. Swatzel, D. Horsley and A. Glover, “Girth Weld ECA from the Perspective of Code Revisions in North America,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002


  38. Y.-Y. Wang, D. Rudland and D. Horsley, “Development of a FAD-Based Girth Weld ECA Procedure, Part II Experimental Verification,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002.


  39. Y.-Y. Wang, D. Rudland and D. Horsley, “Development of a FAD-Based Girth Weld ECA Procedure, Part I Theoretical Framework,” Proceedings of the International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29-October 3, 2002.


  40. D. L. Rudland, Y.-Y. Wang and G. M. Wilkowski,“Comparison of Crack-Opening Displacement Predictions for LBB Applications,” International Journal of Pressure Vessels and Piping, Vol. 79, 2002, pp. 209-219.


  41. G. Wilkowski, P. Scott, S. Rahman, D. Rudland, R. Wolterman, P. Krishnaswamy, and C. Fairbanks, “Considerations for Probabilistic Analyses to Assess Potential Changes to Large-Break LOCA Definition for ECCS Requirements,” Proceedings of ICONE-10 conference, Washington D.C., April 2002.


  42. Z. Feng, and G. Wilkowski, “Repair Welding Of Irradiated Materials – Modeling Of Helium Bubble Distributions For Determining Crack-Free Welding Procedures,” Proceedings of ICONE-10 conference, Washington, D.C., April 2002.


  43. G. Wilkowski, Z. Feng, D. Rudland, Y.-Y, Wang, R. Wolterman and W. Norris, “Summary of Ongoing NRC Efforts to Define Circumferential-Crack-Driving-Force Solutions for CRDM Nozzles,” Presented at USNRC Nuclear Safety Research Conference, October 2002.


  44. G. Wilkowski, R. Tregoning, P. Scott and D. Rudland. “Status of Efforts to Evaluate LOCA Frequency Estimates Using Combined PRA and PFM Approaches,” Proceedings of 28th MPA-Seminar, Stuttgart, Germany, October 2002.


  45. P. M. Scott, R. J. Olson, and G. M. Wilkowski, “Development of Rechnical Basis for Leak-Before-Break Evaluation Procedures,” NUREG/CR-6765, May 2002.


    46. 2001

  46. Y.-Y. Wang, W. G. Reuter and J. C. Newman, “Analysis of Brittle Fracture in Surface-Cracked Plates Using Constraint-Corrected Stress Fields,”Fatigue and Fracture Mechanics: 33rd Volume, ASTM STP 1417, W. G. Reuter and R. S. Piascik, Eds., American Society for Testing and Materials, West Conshohocken, PA, 2001.


  47. Feng, Z., Miura, N., Ghadiali, N., Brust, F., Santos, T., Choi, J. B., and Wilkowski G. M., “Pipe-System Boundary Conditions Restraint of Induced Bending Effects from Axial Loads on COD for LBB Applications – Finite Element Round Robin Results,” Presented at SMiRT-16 Conference, August 2001.


  48. Rudland, D., and Wilkowski, G., “Importance of Using Proper Crack Morphology Parameters for Leak-Rate Analyses in LBB Evaluations,” Presented at SMiRT-16 Conference, August, 2001


  49. Scott, P. M., Olson, R., J., Wilkowski, G. M., Miura, N., Choi, Y.-H. Chang, T.-Y., and Chokshi, N., “Overview of the Battelle Integrity of Nuclear Piping (BINP) Program,” Presented at SMiRT-16 Conference, August 2001.


  50. Cipolla, R. C., Scarth, D. A., Wilkowski, G. M., and Zilberstein, V., “Technical Basis for Proposed Revision to Acceptance Criteria for ASME Section XI Pipe Flaw Evaluation,” Presented at 2001 ASME PVP Conference.


  51. Wilkowski, G., and Rudland, D., Bass, R., and Williams, P., “Structural and Leakage Evaluations for CRDM Cracking”, Presented at SMiRT-16 LBB Workshop, August 16, 2001.


  52. Wilkowski, G., Rudland, D., Olson, R., Scott, P., “Effects of Secondary Stresses on Pipe Fracture,” Presented at SMiRT-16 LBB Workshop, August 16, 2001.


  53. Scott, P., Olson, R., Wilkowski, G., Rudland, D., “Technical Recommendations for New USNRC Reg. Guide for LBB,” Presented at SMiRT-16 LBB Workshop, August 16, 2001.


  54. Osage, D. A., Krishnaswamy, P., Stephens, D. R., Scott, P., Janelle, J., Mohan, R., Wilkowski, G. M., “Technologies for the Evaluation of Non-Crack-Like Flaws in Pressurized Components – Erosion/Corrosion, Pitting, Blisters, Shell-out-of-Roundness, Weld Misalignment, Bulges and Dents”, WRC Bulletin 465, September 2001.


    55. 2000

  55. D. Rudland, Y.-Y. Wang and G. M. Wilkowski, “Comparison of Estimation Schemes and FEM Analysis Predictions of Crack Opening Displacement for LBB Applications,” in Assessment Methodologies for Preventing Failure: Deterministic and Probabilistic Aspects and Welding Residual Stress, Vol. 1 ASME PVP-Vol. 410-1, Edited by R. Mohan, 2000, pp. 157-162.


  56. Y.-Y. Wang, G. M. Wilkowski and D. J. Horsley, “Plastic Collapse Analysis of Pipeline Girth Welds,” in Assessment Methodologies for Preventing Failure: Deterministic and Probabilistic Aspects and Welding Residual Stress, Vol. 1 ASME PVP-Vol. 410-1, Edited by R. Mohan, 2000, pp. 3-9.


  57. Wilkowski, G., Rudland, D., and Wang, Y. Y., “Recent Development On Determining Steady-State Dynamic Ductile Fracture Toughness From Impact Tests,” Proceedings of 3rd International Pipeline Technology Conference, Brugge, Belgium, May 21-24, 2000, Volume 1, pp. 359-386.


  58. Krishnaswamy, P., Wilkowski, G. M., Rudland, D. L., and P. M. Scott, “Acceptance Criteria For Blunt Erosion-Corrosion Type Of Flaws In Piping - Comparison Of Analyses and Full-Scale Experiments,” PVP Volume 407, July 2000, pp. 207-220.


  59. Wilkowski, G., “Leak-Before-Break – What Does it Really Mean?” Journal of PVT, Vol. 122, No. 3, August 2000, pp. 267-272.


  60. Rudland, D. L., Wang, Y. Y., and Wilkowski, G. M., “Developing Dynamic Steady-State Ductile Fracture Toughness Test Procedures from a DWTT-Size Specimen,” Presented at 2000 IPC Conference, Calgary Alberta, Canada, October 8, 2000.


  61. Wilkowski, G., “Ductile Fracture Arrest Methodology For Current And Future Grades Of Linepipe Steels,” Seminar at PetroChina, Beijing, China, October 25-27, 2000.


    62. 1999

  62. Wilkowski, G., Wang, Y.-Y., and Rudland, D., “Summary of Recent Efforts on Characterizing Propagating Ductile Fracture Resistance of Linepipe Steels,” Proceedings of the International Conference on Advances in Welding Technology: Pipeline Welding and Technology, Galveston, Texas, October 26-28, 1999.


  63. Wilkowski, G., “Leak-Before-Break – What Does it Really Mean?” 1999 ASME PVP Conference. (Presentation only.)


    64. 1998

  64. Wilkowski, G. M., Olson, R. J., and Scott, P. M., “State-of-the-Art Report on Piping Fracture Mechanics,” U.S. Nuclear Regulatory Commission report NUREG/CR-6540, BMI-2196, February 1998.


  65. G. Wilkowski, M. Fleming, D. Rudland, and P. Scott, “Statistical Determination of Flow Stress from the CIRCUMCK Piping Fracture Database,” 1998 ASME PVP Conference.


  66. Rahman, S., Brust, F. W., Ghadiali, N., and Wilkowski, G. M., “Crack-Opening-Area analyses for Circumferential Through-Wall Cracks in Pipes - Part I: Analytical Models,” International Journal of Pressure Vessels and Piping, Vol. 75, (1998) pp. 357-373.


  67. Rahman, S., Brust, F. W., Ghadiali, N., and Wilkowski, G. M., “Crack-Opening-Area analyses for Circumferential Through-Wall Cracks in Pipes - Part II: Model Validations," International Journal of Pressure Vessels and Piping, Vol. 75, (1998) pp. 375-396.


  68. Rahman, S., Ghadiali, N., Wilkowski, G. M., Moberg, F., and Brickstad, B., “Crack-Opening-Area Analyses for Circumferential Through-Wall Cracks in Pipes - Part III: Off-Centered Cracks, Restraint of Pressure Induced Bending, Thickness Transition, and Weld Residual Stresses,” International Journal of Pressure Vessels and Piping, Vol. 75, (1998) pp. 397-415.


  69. Muira, N. and Wilkowski, G. M., “J-R Curves from Circumferentially Through-Wall-Cracked Pipe Tests Subjected to Combined Bending and Tension B Part I: Theory and Numerical Simulation,” ASME Journal of Pressure Vessel Technology, Vol. 120, November 1998, pp. 406-411.


  70. Muira, N. and Wilkowski, G. M., “J-R Curves from Circumferentially Through-Wall-Cracked Pipe Tests Subjected to Combined Bending and Tension B Part II: Experimental and Analytical Validation,” ASME Journal of Pressure Vessel Technology, Vol. 120, November 1998, pp. 412-417.


  71. Wilkowski, G. M. and Mihell, J., “Ductile Fracture Arrest Methodology for Current and Future Grades of Linepipe Steels,” in Materials for Resource Recovery and Transport, Proceeding of 37th Annual Conference of Metallurgists of CIM, Calgary Alberta, August 1998, ISBN 0-919086-83-7, pp. 267-298.


  72. Scott, P. M., Anderson, T. L., Osage, D. A., and Wilkowski, G. M., “Review of Existing Fitness-For-Service Criteria for Crack-Like Flaws,” Welding Research Council Bulletin 430, April 1998.


    73. 1997
  73. Ghadiali, N., Olson, R. J., Rahman, S., and Wilkowski, G. M., “Importance of Pipe System Interactions on Leakrate and Fracture Behavior for LBB,” SMiRT 14, Volume G, pp. 251-258, August 1997.


  74. Rudland, D., Brust, F., and Wilkowski, G., “Fracture Toughness Evaluations of TP304 Stainless Steel Pipes,” NUREG/CR-6446, February 1997.


  75. Scott, P., Olson, R. Marschall, C., Rudland, D., Francini, R., Wolterman, R., Hopper, A., and Wilkowski, G. M., “IPIRG-2 Task 1 Report - Pipe System Experiments with Cracks in Straight Pipe Locations,” NUREG/CR-6389, February 1997.


  76. Hopper, A. T., Wilkowski, G. M., Scott, P. M., Olson, R. O., Rudland, D., Kilinski, T., Mohan, R., Ghadiali, N., and Paul, D., “The Second International Piping Integrity Research Group (IPIRG 2) Program - Final Report,” NUREG/CR-6452, February 1997.


  77. Wilkowski, G., M., Mohan, R., and Kilinski, T., “Development of Simplified Analysis Procedure for Cracks in Elbows,” SMiRT 14, Volume G, pp. 227-234, August 1997.


  78. Mohan, R., Wilkowski, G. M., Bass, B., and Bloom, J., “Determination of R/t Limits for ASME Code Case N-494 FAD Curve Procedure,” SMiRT 14, Volume G, pp. 595-602, August 1997.


  79. Ghadiali, N., Olson, R. J., Rahman, S., and Wilkowski, G. M., “Importance of Pipe System Interactions on Leakrate and Fracture Behavior for LBB,” SMiRT 14, Volume G, pp. 251-258, August 1997.


  80. Rudland, D., Brust, F., and Wilkowski, G., “Fracture Toughness Evaluations of TP304 Stainless Steel Pipes,” NUREG/CR-6446, February 1997.


  81. Scott, P., Olson, R. Marschall, C., Rudland, D., Francini, R., Wolterman, R., Hopper, A., and Wilkowski, G. M., “IPIRG-2 Task 1 Report - Pipe System Experiments with Cracks in Straight Pipe Locations,” NUREG/CR-6389, February 1997.


  82. Hopper, A. T., Wilkowski, G. M., Scott, P. M., Olson, R. O., Rudland, D., Kilinski, T., Mohan, R., Ghadiali, N., and Paul, D., “The Second International Piping Integrity Research Group (IPIRG 2) Program - Final Report,” NUREG/CR-6452, February 1997.


  83. Wilkowski, G., M., Mohan, R., and Kilinski, T., “Development of Simplified Analysis Procedure for Cracks in Elbows,” SMiRT 14, Volume G, pp. 227-234, August 1997.


  84. Mohan, R., Wilkowski, G. M., Bass, B., and Bloom, J., “Determination of R/t Limits for ASME Code Case N-494 FAD Curve Procedure,” SMiRT 14, Volume G, pp. 595-602, August 1997.


  85. Choi, Y. H., Lee, J. B., and Wilkowski, G. M., “Development of new Z-factors for the Evaluation of a Surface Crack in Nuclear Piping,” SMiRT 14, Volume G, pp. 603-610, August 1997.


  86. Rudland, D., and Wilkowski, G. M., “Toughness Trends under Dynamic and Cyclic Loading on Nuclear Piping Steels,” SMiRT 14, Volume G, pp. 151-158, August 1997.


  87. Olson, R., Scott, P., and Wilkowski, G. M., “Lessons Learned About the Seismic Time-Histories on Pipe Fracture,” SMiRT 14, Volume K, pp. 125-136, August 1997.


  88. Wilkowski, G., “Deterministic Margins in Codes and Standards,” SMiRT 14, Workshop GM, August 1997. (Presentation only)


  89. Wilkowski, G., M., Mohan, R., and Kilinski, T., “Simplified Analysis Procedure for Axial and Circumferential Surface Cracks in Elbows under Pressure and Bending,” ASME PVP Conference, PVP Volume 350, pp. 129-140, July 1997.


  90. Mohan, R., Wilkowski, G. M., Bass, B., and Bloom, J., “Finite Element Analyses to Determine the R/t Limits for ASME Code Case N-494 FAD Curve Procedure,” ASME PVP Conference, PVP Volume 350, pp. 77-88, July 1997.


  91. Scott, P. and others, “Crack Stability in a Representative Piping System Under Combined Inertial and Seismic/Dynamic Displacement-Controlled Stresses - Subtask 1.3 Final Report,” NUREG/CR-6233 Vol. 3, BMI-2177, June 1997.


  92. Rudland, D. L., Marschall, C., and Wilkowski, G. M., “Effect of Dynamic Loading Corresponding to Seismic Loading Rates on the Fracture Toughness of Nuclear Piping Steels,” ASME PVP Conference, PVP Volume 350, 89-96, July 1997.


  93. Rahman, S., and Wilkowski, G. M., “Net-Section-Collapse Analysis of Circumferentially Cracked Pipes: Part I - Arbitrary-Shaped Cracks and Generalized Equations,” ASME PVP Conference, PVP Volume 350, 45-62, July 1997.


  94. Stephens, D. R., Krishnaswamy, P., Mohan, R., Osage, D., and Wilkowski, G. M., “A Review of Analysis Methods and Acceptance Criteria for Local Thinned Areas in Piping and Piping Components,” ASME PVP Conference, PVP Volume 359, 55-66, July 1997.


  95. Scott, P., Wilkowski, G. M., Anderson, T., and Osage, D., “Issues Related to the Development of a Fitness-for-Service Standard for Crack-Like Flaws,” ASME PVP Conference, PVP Volume 359, 135-150, July 1997.


  96. Scott, P., Wilkowski, G. M., Anderson, T., and Osage, D., “A Review and Validation of Existing Flaw Evaluation Criteria for Crack-Like Flaws for Pressure Retaining Equipment,” ASME PVP Conference, PVP Volume 359, 151-170, July 1997.


  97. Wilkowski, G. M., Stephens, D., Krishnaswamy, P., Leis, B., and Rudland, D., “Progress in Development of Acceptance Criteria for Local Thinned Areas in Pipe and Piping Components,” Post-SMiRT Seminar #2, Current Issues in the Evolution of Risk-Informed Integrity Engineering, Paper 2.3, August 1997.


  98. Rahman, S., Wilkowski, G., and Mohan, R., “Low-Cycle Fatigue Crack Growth Considerations in Pipe Fracture Analyses,” Nuclear Engineering and Design, Vol. 168, pp. 105-118 (1997).


    99. 1996

  99. Rahman, S., Olson, R., Rosenfield, A., and Wilkowski, G., “Summary of Results from the IPIRG 2 Round-Robin Analyses,” NUREG/CR-6337, January 1996.


  100. Rudland, D. L., Scott, P. M., and Wilkowski, G. M., “The Effect of Cyclic and Dynamic Loads on Carbon Steel Pipe,” NUREG/CR-6438, February 1996.


  101. Olson, R., Scott, P., and Wilkowski, G., “Design of the IPIRG-2 Simulated Seismic Forcing Function,” NUREG/CR-6439, February 1996.


  102. Kilinski, T., Mohan, R., Rudland, D., Fleming, M., Olson, R., Scott, P., Brust, F., Ghadiali, N., Wilkowski, G., and Hopper, A., "Fracture Behavior of Circumferentially Surface-Cracked Elbows,” NUREG/CR-6444, December 1996.


  103. Ghadiali, N., Rahman, S., Choi, Y. H., and Wilkowski, G., “Deterministic and Probabilistic Evaluations for Uncertainty in Pipe Fracture Parameters In Leak-Before-Break and In-Service Flaw Evaluations,” NUREG/CR-6443, June 1996.


  104. Scott, P. M. and Wilkowski, G. M., “Development and Application of a Database of Pipe Fracture Experiments,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 13-26.


  105. Ghadiali, N., and Wilkowski, G. M., “Fracture Mechanics Database for Nuclear Piping Materials (PIFRAC),” Fatigue and Fracture Volume 2, 1996, PVP Volume 324, July 1996, pp. 77-84.


  106. Rosenfield, A., Held, P., and Wilkowski, G. M., “Fracture Toughness Evaluation of Stainless Steel Weld Fusion Lines,” Fatigue and Fracture Volume 2, 1996, PVP Volume 324, July 1996, pp. 85-94.


  107. Scott, P., Rudland, D., Francini, R., Rahman, S., and Wilkowski, G., “Fracture Evaluations of Fusion Line Cracks in Bimetallic Welds,” Fatigue and Fracture Volume 2, 1996, PVP Volume 324, July 1996, pp. 101-114.


  108. Krishnaswamy, P., Rahman, S., Scott, P., Kilinski, T., Francini, R., and Wilkowski, G., “Improvements to Surface-Cracked Pipe J-estimation Schemes: Comparison of Experiments and Analytical Predictions,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 39-50


  109. Wilkowski, G. M., Scott, P. M., Krishnaswamy, P., and Choi, Y. H., “Proposed Modification of the ASME Section XI Pipe Flaw Evaluation Criteria Based on New Surface-Cracked,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 51-64.


  110. Mohan, R., Marschall, C., Ghadiali, N., and Wilkowski, G., “A Screening Criterion for Angled Crack Initiation in Ferritic Pipe Steels Exhibiting Fracture Anisotropy,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 189-206.


  111. Mohan, R., Krishna, A., Brust, F. W., Ghadiali, N., Kilinski, T., and Wilkowski, G., “Fracture Analysis of Cracked Elbows: Part I - J estimation Schemes for Internal Circumferential and Axial Surface Cracks,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 83-96.


  112. Kilinski, T., Mohan, R., and Wilkowski, G., “Fracture Analysis of Cracked Elbows: Part II - Comparison of Experimental Results with Estimation Scheme Predictions,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 97-108.


  113. Zhao, Y. and Wilkowski, G. M., “A Case Study for Assessment of Consistency Between ASME Section III and Section XI Rules,” Seismic Engineering, 1996, ASME PVP Volume 340, July 1996, pp. 331-344.


  114. Rudland, D. L., Scott, P. M., Wilkowski, G. M., and Rahman, S., “Fracture Evaluation of an In-Service Piping Flaw Caused by Microbiologically Induced Corrosion,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 71-82.


  115. Rudland, D. L., Wilkowski, G. M., and Miura, N., “Comparison of Through-Wall Cracked Pipe and Compact Tension Specimen Cyclic J-R Curves,” Fatigue and Fracture Volume 1, 1996, PVP Volume 323, July 1996, pp. 217-232.


  116. Dong, P., Rahman, S., Wilkowski, G. M., Brickstad, B., Bergman, M., Bouchard, J., and Chivers, T., “Effect of Weld Residual Stresses on Crack-Opening Area Analyses of Pipes for LBB Applications,” Residual Stresses in Design, Fabrication, Assessment and Repair, PVP Volume 327, July 1996, pp. 89-102.


  117. Rahman, S., Wilkowski, G., and Brust, F., “Fracture Analysis of Full-Scale Pipe Experiments on Stainless Steel Flux Welds,” Nuclear Engineering and Design, Volume 160, pp. 77-96 (1996).


  118. Rudland, D. L., Brust, F., and Wilkowski, G. M., “The Effect of Cyclic and Dynamic Loading on the Fracture Resistance of Nuclear Piping Steels,” NUREG/CR-6440, December 1996.


    119. 1995

  119. Marschall, C. W., Landow, M. P., Wilkowski, G. W., and Rosenfield, A. R., “Comparison of Static and Dynamic Strength and J-R Curves of Various Piping Materials from the IPIRG-1 Program,” Int. J. Ves. & Piping, 62, (1995) 49-58.


  120. Rahman, S., Ghadiali, N., Wilkowski, G., and Borona, N., “Effects of Off-Centered Crack and Restraint of Induced Bending Due to Pressure on the Crack- Opening-Area Analysis of Pipes,” Proceedings of ASME/JSME 1995 PVP Conference.


  121. Rahman, S., Ghadiali, N., Wilkowski, G., and Paul, D., “A Computer Model for Probabilistic Leak-Rate Analysis of Nuclear Piping and Piping Welds,” ASME/JSME 1995 PVP Conference, Volume PVP 304, pp. 355-374, July 1995.


  122. Muira, N., and Wilkowski, G., “J-R Curves from Through-Wall-Cracked Pipe Tests - Combined Loading and Short Crack Considerations,” ASME PVP Vol. 304, Fatigue and Fracture Mechanics in Pressure Vessels and Piping, pp. 171-180, July 1995.


  123. Krishnaswamy, P., Wilkowski, G., Mohan, R., Scott, P., Rahman, S., Choi, Y., and Ghadiali, N., “Improvements to Surface-Cracked Pipe J-estimation Schemes, Validation by Experiments, and Proposed Modification of the ASME Section XI Pipe Flaw Evaluation Criteria,” 21st MPA Seminar, October 1995.


  124. Scott, P. M. and Wilkowski, G. M., “A Comparison of Recent Full-Scale Component Fatigue Data with the ASME Section III Fatigue Design Curves,” ASME PVP Vol. 306, Fatigue and Fracture Mechanics in Pressure Vessels and Piping, pp. 129-138, July 1995.


  125. Scott, P., Francini, R., Rahman, S., Rosenfield, A., and Wilkowski, G., “C(T) and Large Diameter Pipe Fracture Evaluations of a Fusion Line Crack in a Bimetallic Weld,” 13th SMiRT Conference, August 1995.


  126. Krishnaswamy, P., Ghadiali, N., and Wilkowski, G., “An Assessment of Proposed Changes in ASME Section III Allowable Stresses on the Critical Flaw Size of Piping,” 13th SMiRT Conference, August 1995.


  127. Wilkowski, G., Held, P., and Rosenfield, A., “Fracture Toughness Evaluation of Stainless Steel Weld Fusion Lines,” 13th SMiRT Conference, August 1995.


  128. Rudland, D., Scott, P., Rahman S., and Wilkowski, G., “Fracture Evaluation and Test Results on a MIC Induced Service Crack in a Diesel Generator Coolant Line,” 13th SMiRT Conference, August 1995.


  129. Hopper, A., Mayfield, M., Olson, R., Scott, P. and Wilkowski, G., “Overview of the IPIRG-2 Program - Seismic Loaded Cracked Pipe System Experiments,” 13th SMiRT Conference, August 1995.


  130. Wilkowski, G. M. et al, “Short Cracks in Piping and Piping Welds,” Seventh Semiannual Report, NUREG/CR-4599, Vol. 4, No. 1, April 1995.


  131. Brust, F., Scott, P., Rahman, S., Ghadiali, N., Kilinski, T., Francini, R., Marschall, C., Muira, N., Krishnaswamy, P., and Wilkowski, G., “Assessment of Short Through-Wall Circumferential Cracks in Pipes - Experiments and Analyses,” NUREG/CR-6235, April 1995.


  132. Scott, P., Francini, R., Rahman, S. Rosenfield, A., and Wilkowski, G., “Fracture Evaluations of Fusion-Line Cracks in Nuclear Pipe Bimetallic Welds,” NUREG/CR-6297, April 1995.


  133. Mohan, R., Marschall, C., Krishnaswamy, P., Brust, F., Ghadiali, N., and Wilkowski, G., “Effects of Toughness Anisotropy and Combined Loading on Fracture Behavior of Ferritic Nuclear Pipe,” NUREG/CR-6299, April 1995.


  134. Rahman, S., Brust, F., Ghadiali, N., Choi, Y. H., Krishnaswamy, P., Moberg, F., Brickstad, B., and Wilkowski, G., “Refinement and Evaluation of Crack-Opening Analyses for Short Circumferential Through-Wall Cracks in Pipes,” NUREG/CR-6300, April 1995.


  135. Rahman, S., Ghadiali, N., Paul, D., and Wilkowski, G., “Probabilistic Pipe Fracture Evaluations for Leak-Rate Detection Applications,” NUREG/CR-6004, April 1995.


  136. Rosenfield, A., Held, P., and Wilkowski, G., “Stainless Steel Submerged Arc Weld Fusion Line Toughness,” NUREG/CR-6251, April 1995.


  137. Krishnaswamy, P., Scott, P., Mohan, R., Rahman, S., Choi, Y. H., Brust F., Kilinski, T., Ghadiali, N., Marschall, C., and Wilkowski, G., “Fracture Behavior of Circumferential Short-Surface-Cracked Pipe,” NUREG/CR-6298, November 1995.


  138. Rahman, S., Dong, P., Wilkowski, G. M., Brickstad, B., Moberg, F., “Effect of Weld Residual Stresses on the Crack-Opening-Area Analysis of Pipes for LBB Applications,” LBB '95 Conference, Lyon France, October 1995.


  139. Wilkowski, G., Rahman, S., Brust, F., Ghadiali, N., Miura, “Recent Evaluations of Crack-Opening-Area in Circumferentially Cracked Pipes,” LBB '95 Conference, Lyon France, October 1995.


  140. Wilkowski, G., Rahman, S., Ghadiali, N., Paul, D., “Determination of Crack Morphology Parameters from Service Failures for Leak-Rate Analyses,” LBB '95 Conference, Lyon France, October 1995.


  141. Wilkowski, G., M., Olson, R., Scott, P., Brust, F., Ghadiali, N., Kilinski, T., Rudland, D., Hopper, A., “The IPIRG Programs - Advances in Pipe Fracture Technology,” LBB '95 Conference, Lyon France, October 1995.


  142. Rahman, S., Ghadiali, N., Wilkowski, G., “Uncertainty Analyses for Probabilistic Pipe Fracture Evaluations in LBB Applications,” LBB '95 Conference, Lyon France, October 1995.


  143. Olson, R., Rahman, S., Scott, P., Mohan, R., Kilinski, T., Rudland, D., Krishnaswamy, P., Hopper, A., and Wilkowski, G., “Advanced LBB Methodology and Considerations,” LBB '95 Conference, Lyon France, October 1995.


  144. Mohan, R., Marschall, C., Krishnaswamy, P., Krishna, A., Ghadiali, N., and Wilkowski, G., “Effects of Toughness Anisotropy and Combined Tension, Torsion, and Bending Loads on Fracture Behavior of Ferritic Nuclear Pipe,” LBB '95 Conference, Lyon France, October 1995.


  145. Rudland, D., Scott, P., Marschall, C., and Wilkowski, G. “Material Property Evaluations of Bimetallic Welds, Stainless Steel SAW Fusion Lines, and Materials Affected by Dynamic Strain Aging,” LBB '95 Conference, Lyon France, October 1995.


  146. Rudland, D., Mohan, R., Ghadiali, N., Detty, D., Rosenfield, A., Wilkowski, G., “Effect of Constraint Due to Out of Plane Stress Field on Fracture of Reactor Pressure Vessel Steel—An Experimental and Analytical Study,” ASTM STP 1244, Constraint Effects in Fracture Theory and Applications, 1995.


    147. 1994

  147. Scott, P., Olson, R., and Wilkowski, G., “The IPIRG-1 Pipe System Fracture Tests -- Experimental Results,” ASME PVP Vol. 280, June 1994, pp. 135-152.


  148. Scott, P., Olson, R., and Wilkowski, G., “The IPIRG-1 Pipe System Fracture Tests -- Analytical Results,” ASME PVP Vol. 280, June 1994, pp. 153-165.


  149. Scott, P., Olson, R., Wilson, M., and Wilkowski, G., “The Effect of Inertial Loading on Circumferentially Cracked Pipe Results,” ASME PVP Vol. 280, June 1994, pp. 183-198.


  150. Scott, P., Kramer, G., Vieth, P., Francini, R., and Wilkowski, G., “The Effect of Dynamic and Cyclic Loading During Ductile Tearing on Circumferentially Cracked Pipe -- Experimental Results,” ASME PVP Vol. 280, June 1994, pp. 207-220.


  151. Olson, R., Scott, P., Marschall, C., and Wilkowski, G., “Comparison of Fracture Toughness Values from an IPIRG-1 Large-Scale Pipe System Test and C(T) Specimens on Wrought TP304 Stainless Steel,” ASME PVP Vol. 280, June 1994, pp. 241-254.


  152. Wilkowski, G., Rahman, S., and Mohan, R., “Low-Cycle Fatigue Crack Growth Considerations in Pipe Fracture Analyses,” ASME PVP Vol. 280, June 1994, pp. 281-298.


  153. Marschall, C., Rosenfield, A., Held, P., and Wilkowski, G., “A Screening Criterion for Dynamic Strain Aging Sensitivity of Ferritic Nuclear Piping Steels,” ASME PVP Vol. 280, June 1994, pp. 199-206.


  154. Olson, R., Wolterman, R., and Wilkowski, G., “Margins for Dynamic FEM Analysis of Cracked Pipe Under Seismic Loading for the DOE New Production Reactor,” ASME PVP Vol. 280, June 1994, pp. 119-134.


  155. Olson, R., Wolterman, R., and Wilkowski, G., “FEM Predictions of the HDR Circumferentially Cracked Pipe Experiments,” ASME PVP Vol. 280, June 1994, pp. 165-182.


  156. Wilkowski, G., Kramer, G., Vieth, P., Francini, R., and Scott, P., “The Effect of Cyclic Loading During Ductile Tearing on Circumferentially Cracked Pipe -- Analytical Results ASME PVP Vol. 280, June 1994, pp. 221-240.


  157. Rahman, S., Brust, F., and Wilkowski, G., “Analyses of Full-Scale Pipe Fracture Experiments on Stainless Steel Flux Welds,” ASME PVP Vol. 280, June 1994, pp. 241-254.


  158. Olson, R., Wolterman, R., Scott, P., Krishnaswamy, P., and Wilkowski, G., “The Next Generation Methodology for Cracked Pipe System Subjected to Dynamic Loads,” ASME PVP Vol. 280, June 1994, pp. 159-172.


  159. Marschall, C. W., Mohan, R., Krishnaswamy, P., and Wilkowski, G. M., “Effect of Dynamic Strain Aging on the Strength and Toughness of Nuclear Ferritic Piping at LWR Temperatures," NUREG/CR-6226, October 1994.


  160. Wilkowski, G., Krishnaswamy, P., Brust, F., Francini, R., Ghadiali, N., Kilinski, T., Marschall, C., Mohan, R., Rahman, S., Rosenfield, A., Rudland, D., Scott, P., “Key Results for the NRC's Short Cracks in Piping and Piping Welds Research Program,” NUREG/CP-0139, October 1994.


  161. Scott, P. M., Wilson, M., Olson, R., Marschall, C., Schmidt, R., and Wilkowski, G., “Stability of Cracked Pipe Under Inertial Stresses - Subtask 1.1 Final Report,” NUREG/CR-6233, Vol. 1, August 1994.


  162. Olson, R. J., Wolterman, R. L., Wilkowski, G. M., and Kot, C. A. “Validation of Analysis Methods for Assessing Flawed Piping Subjected to Dynamic Loading,” NUREG/CR-6234, August 1994.


  163. Paul, D. D., Ahmad, J., Scott, P. M., Flanigan, L., and Wilkowski, G. M., “Evaluation and Refinement of Leak-Rate Estimation Models,” NUREG/CR-5128 Rev. 1, June 1994.


  164. P. Scott, G. Wilkowski, D. Sturm, and W. Stoppler, “Development of a Database of Pipe Fracture Experiments,” Nuclear Engineering and Design, Vol. 151, (1994) pp. 359-371.


    165. 1993

  165. S. Rahman, G. Wilkowski, and N. Ghadiali, “Pipe Fracture Evaluations for Leak-Rate Detection: Probabilistic Models,” ASME PVP conference, Vol. 266, July 1993, pp 243-254.


  166. G. Wilkowski, S. Rahman, and N. Ghadiali, “Pipe Fracture Evaluations for Leak-Rate Detection: Deterministic Models,” ASME PVP conference, Vol. 266, July 1993, pp 255-268.


  167. S. Rahman, G. Wilkowski, and N. Ghadiali, "Pipe Fracture Evaluations for Leak-Rate Detection: Applications to BWR and PWR Piping,” ASME PVP conference, Vol. 266, July 1993, pp 269-286.


  168. Marschall, C. W., Landow, M., and Wilkowski, G. M., “Comparison of Static and Dynamic Strength and J-R Curves of Various Piping Materials from the IPIRG-1 Program,” SMiRT-12, Paper G12/4, August 1993.


  169. Olson, R., Wolterman, R., and Wilkowski, G., “Dynamic Fracture Analysis of the HDR-E31 Pipe System Experiments,” SMiRT-12, Paper G12/1, August 1993.


  170. Wilkowski, G., Krishnaswamy, P., Rahman, S., Scott, P., and Marschall, C., “Current Results from the NRC's Short Cracks in Piping and Piping Welds Program,” SMiRT-12, Paper G14/1, August 1993.


  171. Marschall, C. W., Landow, M., and Wilkowski, G. M., “Loading Rate Effects on Strength and Fracture Toughness of Pipe Steels Used in Task 1 of the IPIRG Program,” NUREG/CR-6098, October 1993.


    172. 1992

  172. P. Krishnaswamy, P. Scott, and G. Wilkowski, “Effect of Aging on the Predicted Maximum Moment-Carrying Capacity of Circumferentially Cracked Cast Stainless Steel Pipe,” Proceedings of NRC Aging Research Information Conference, NUREG/CP-0122, March 1992, pp. 341-368.


  173. R. Olson, P. Scott, and G. Wilkowski, “Application of a Nonlinear Spring Element to Analysis of Circumferentially Cracked Pipe under Dynamic Loading,” Pressure Vessel Fracture, Fatigue and Life Management, ASME PVP Vol. 233, June 1992, pp. 279-292.


  174. R. Olson, P. Scott, C. Marschall, and G. Wilkowski, “Comparison of Fracture Toughness Values from Large-Scale Pipe System Tests and C(T) Specimens,” Proceedings of the Joint IAEA/CSNI Specialists' Meeting on Fracture Mechanics Verification by Large Scale Testing, NUREG/CP-0131, NUREG/CP-0131, October 1992.


  175. S. Rahman, G. Wilkowski, and N. Ghadiali, “Probabilistic Pipe Fracture Evaluations for Applications to Leak-Rate Detection,” Presented at CSNI International Workshop on Reactor Coolant System Leakage and Failure Probability, Koln, Germany, December 1992.


  176. P. Scott, G. Wilkowski, D. Sturm, and W. Stoppler, “Development of a Database of Pipe Fracture Experiments,” Proceedings of 18th MPA Seminar, Stuttgart, Germany, October 1992.


  177. W. Stoppler, D. Sturm, P. Scott, and G. Wilkowski, “Analysis of the Failure Behavior of Longitudinal Flawed Pipes and Vessels,” Proceedings of 18th MPA Seminar, Stuttgart, Germany, October 1992.


    178. 1991

  178. G. M. Wilkowski, “Summary of the Status of Pipe Fracture Predictions” Proceedings of the Seminar on Assessment of Fracture Prediction Technology: Piping and Pressure Vessels, NUREG/CP-0037, February 1991, pp. 2-69 to 2-147.


  179. R. A. Schmidt, G. M. Wilkowski, and M. Mayfield, “The International Piping Integrity Research Group (IPIRG) Program--An Overview,” SMiRT-11 Proceedings, August 1991, Paper G23/1.


  180. G. Wilkowski, P. Vieth, G. Kramer, C. Marschall, and M. Landow, “Results of Separate-Effects Pipe Fracture Experiments,” Post-SMiRT-11 Conference, August 1991, Paper 4.2.


  181. G. Wilkowski, F. Brust, R. Francini, T. Kilinski, P. Krishnaswamy, M. Landow, C. Marschall, S. Rahman, and P. Scott, “Summary of Short Cracks in Piping and Piping Welds Program and Key Results to Date,” Presented at 17th MPA Seminar, Stuttgart, Germany, October 1991.


  182. R. A. Schmidt and G. M. Wilkowski, “USNRC's Pipe Fracture Tests Using Aged Cast Stainless Steel Pipe,” Presented at USNRC-JAPEIC Second Specialized Topic Workshop, November 1991.


  183. Wilkowski, G. M., “Anisotropic Fracture Toughness Effects on Failure Modes of Piping,” ASME Journal of Pressure Vessel Technology, Vol. 113, May 1991, pp. 154-158.


    184. 1990

  184. G. M. Wilkowski, C. W. Marschall, and M. Landow, “Extrapolations of C(T) Specimens J-R Curves for Use in Pipe Flaw Evaluations,” ASTM STP 1074, 1990, pp. 56-84.


  185. C. W. Marschall, M. P. Landow, and G. M. Wilkowski, “Effect of Dynamic Strain Aging on Fracture Resistance of Carbon Steels Operating at Light Water Reactor Temperatures,” ASTM STP 1074, 1990, pp. 339-360.


  186. G. M. Wilkowski, D. Guerrieri, D. Jones, R. Olson, and P. Scott, “Recent Results of Fracture Experiments on Carbon Steel Welded Pipes,” International Journal of Pressure Vessels and Piping, 43, 1990, pp. 329-350.


    187. 1989

  187. G. M. Wilkowski, and P. M. Scott, “A Statistical Based Circumferentially Cracked Pipe Fracture Mechanics Analysis for Design on Code Implementation,” Nuclear Engineering and Design, Vol. III, 1989, pp. 173-187.


  188. J. Ahmad, V. Papaspyropoulos, F. W. Brust and G. M. Wilkowski, “A Predictive J-Estimation Method for Circumferentially Surface Cracked Pipes of Power-Law Hardening Materials in Pure Bending,” ASME Special Technical Publication, Vol. 167, July 1989, pp. 71-86.


  189. G. M. Wilkowski and G. Kramer, “An Energy Balance Approach to Estimate the Initiation and Arrest of Ductile Fracture Instability in Circumferentially Cracked Pipe,” ASME Special Technical Publication, Vol. 167, July 1989, pp. 103-114.


  190. C. W. Marschall and G. M. Wilkowski, “Effect of Cyclic Loads on Ductile Fracture Resistance,” ASME Special Technical Publication, Vol. 166, July 1989, pp. 1-14.


  191. G. M. Wilkowski, J. Ahmad, G. Kramer, and C.W. Marschall, “Application of Degraded Piping Program Results to Leak-Before-Break and In-Service Flaw Assessment Criteria,” SMiRT-10 Proceedings, Volume 5, August 1989, pp. 105-116.


  192. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Seventh Progress Report: October 1987 - January 1989,” NUREG/CR-4082, Vol. 7, March 1989.


  193. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Summary of Technical Results and Their Significance to Leak-Before-Break and In-Service Flaw Acceptance Criteria,” March 1984-January 1989, NUREG/CR-4082, Vol. 8, March 1989.


    194. 1988

  194. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Sixth Program Report, October 1986-September 1987,” NUREG/CR-4082, Vol. 6, April 1988.


  195. Wilkowski, G. M., “Significance of Degraded Piping Program Results on LBB and In-Service Flaw Inspection Criteria,” LEAK-BEFORE-BREAK: Progress in Regulatory Policies and Supporting Research, Proceedings of seminar in Tokyo, Japan, NUREG/CP-0092, May 1987.


    196. 1987

  196. Kramer, G. S., Wilkowski, G. M., and Maxey, W.A., “Flaw Tolerance of Spiral Welded Line Pipe,” A.G.A. Catalogue L51514, January 1987.


  197. Wilkowski, G. M., et al, “Analysis of Experiments on Stainless Steel Flux Welds,” NUREG/CR-4878, April 1987.


  198. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Semiannual Report, April 1986-September 1986,” NUREG/CR-4082, Vol. 5, April 1987.


    199. 1986

  199. R. Klecker, F. Brust, and G. Wilkowski, “NRC Leak-Before-Break (LBB.NRC) Analysis Method for Circumferentially Through-Wall Cracked Pipe Under Axial Plus Bending Loads,” NUREG/CR-4572, BMI-2134, May 1986.


  200. G. M. Wilkowski, J. Ahmad, C. R. Barnes, D. Broek, F. Brust, D. Guerrieri, J. Kiefner, G. Kramer, M. Landow, C. W. Marschall, W. Maxey, M. Nakagaki, V. Papaspyropoulos, V. Pasupathi, and P. Scott, “Degraded Piping Program - Phase II Semiannual Report, April 1985-September 1985," NUREG/CR-4082, BMI-2120, Vol. 3, March, 1986.


  201. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Semiannual Report, October 1985-March 1986,” NUREG/CR 4082, Vol. 4, September 1986.


  202. Wilkowski, G. M., et al, “Degraded Piping Program - Phase II, Sixth Program Report, October 1986-September 1987,” NUREG/CR-4082, Vol. 6, April 1988.


    203. 1985

  203. G. M. Wilkowski, J. Ahmad, C. R. Barnes, D. Broek, F. Brust, D. Guerrieri, G. Kramer, M. Landow, C. W. Marschall, W. Maxey, M. Nakagaki, P. Scott, V. Papaspyropoulos, V. Pasupathi, and C. Popelar, “Degraded Piping Program - Phase II Progress,” Transactions of the Thirteenth Water Reactor Safety Research Information Meeting, NUREG/CP-0071, October, 1985.


  204. G. M. Wilkowski, J. Ahmad, C. R. Barnes, D. Broek, G. Kramer, M. Landow, C. W. Marschall, W. Maxey, M. Nakagaki, P. Scott, V. Papaspyropoulos, V. Pasupathi, and C. Popelar, “Degraded Piping Program - Phase II Semiannual Report March 1984-September 1984,” NUREG/CR-4082, BMI 2120, Vol. 1, January, 1985.


  205. G. M. Wilkowski, J. Ahmad, D. Broek, F. Brust, G. Kramer, M. Landow, C. W. Marschall, W. Maxey, M. Nakagaki, V. Papaspyropoulos, V. Pasupathi, C. Popelar, and P. Scott, “Analysis of Low-Energy Test Results of Degraded Piping,” Nuclear Engineering and Design, 89, 1985, pp. 257-269.


  206. G. M. Wilkowski, “Degraded Piping Program Overview,” Leak-Before-Break: International Policies and Supporting Research, NUREG/CP-0077, October, 1985.


  207. G. M. Wilkowski, J. Ahmad, C. R. Barnes, D. Broek, F. Brust, G. Kramer, M. Landow, C. W. Marschall, W. Maxey, M. Nakagaki, P. Scott, V. Papaspyropoulos, V. Pasupathi, and C. Popelar, “Degraded Piping Program - Phase II Semiannual Report, October 1984-March 1985,” NUREG/CR-4082, BMI 2120, Vol. 2, July, 1985.


  208. Wilkowski, G. M., Barnes, C. R., Scott, P. M., and Ahmad, J., “Development of Analyses to Predict the Interaction of Fracture Toughness and Constraint Effects for Surface Cracked Pipes,” Report to A.G.A. Welding Supervisory Committee, April 25, 1985.


  209. Wilkowski, G. M. Maxey W. A., and Eiber, R. J., “A.G.A./API Drop Weight Tear Test Round Robin Testing Program,” A.G.A. Catalogue No. L51471, NG-18 report 152, February 1985.


    210. 1984

  210. G. M. Wilkowski, D. Broek, G. Kramer, C. W. Marschall, W. Maxey, M. Nakagaki, P. Scott, and V. Pasupathi, “Analysis and Low-Energy Test Results of Degraded Piping,” Transactions of the Twelfth Water Reactor Safety Research Information Meeting, NUREG/CP-0057, October, 1984.


    211. 1983

  211. M. F. Kanninen, G. M. Wilkowski, J. Pan, J. Ahmad, C. W. Marschall, R. Gilbert, C. H. Popelar, and D. Broek, “The Development of a Plan for the Assessment of Degraded Nuclear Piping by Experimentation and Tearing Instability Fracture Mechanics Analysis,” NUREG/CR-3142, Vol. 1, June 1983.


  212. G. M. Wilkowski, J. Pan, and M. F. Kanninen, “Effect of Flaw Shape on J-Resistance Curve of a Circumferentially Cracked Pipe,” ASME Special Technical Publication PVP, Vol. 95, June 1983.


  213. G. M. Wilkowski, M. F. Kanninen, C. W. Marschall, J. Pan, C. Popelar, D. Broek, J. Ahmad, and R. Gilbert, “Summary of NRC Phase I Degraded Piping Program - Instability Analyses and Review of Experimental Programs to Evaluate J/T Instability Predictions,” ASME Special Technical Publication PVP, Vol. 95, June 1983.


  214. G. M. Wilkowski and K. Prabhat, “Simplified Model for Predicting Elastic to Plastic Instability Loads for Circumferential Cracked Pipes in Bending,” ASME Special Technical Publication PVP, Vol. 95, June 1983.


  215. M. F. Kanninen, G. M. Wilkowski, J. Pan, J. Ahmad, C. W. Marschall, R. Gilbert, C. H. Popelar, and D. Broek, “The Development of a Plan for the Assessment of Degraded Nuclear Piping by Experimentation and Tearing Instability Fracture Mechanics Analysis,” NUREG/CR-3142, Vol. 2, June 1983.


  216. J. Pan and G. Wilkowski, “Application of Tearing Instability Analyses for Complex Crack Geometries in Nuclear Piping,” CSNI Specialist Meeting on Leak-Before-Break in Nuclear Reactor Piping, NUREG/CP-0051, September 1983.


  217. M. F. Kanninen, G. Wilkowski, J. Ahmad, J. Pan, C. W. Marschall, R. Gilbert, and C. Popelar, “The Assessment of Degraded Nuclear Piping by Experimentation and Tearing Instability Fracture Mechanics Analysis,” Nuclear Safety, Vol. 24, No. 5, September-October, 1983, pp. 617-623.


  218. G. M. Wilkowski, “Margins of Safety Based on Circumferential Crack Depth Using the Net-Section-Collapse Analysis,” CSNI Specialist Meeting on Leak-Before-Break in Nuclear Reactor Piping, NUREG/CP-0051, September 1983.


  219. G. S. Kramer and G. M. Wilkowski, "Application of Elastic-Plastic Fracture Test Methods to Nuclear Piping Materials,” Presented at CSNI Specialist Meeting on Ductile Fracture Test Methods, Paris, France, 1983.


  220. G. M. Wilkowski and P. M. Scott, “Design of Crack Arrestors for Arrest of Ductile Fractures in Line Pipes,” Fifth Biennial Joint Technical Meeting on Line Pipe Research, sponsored by A.G.A. Pipeline Research Committee and European Pipeline Research Group, September, 1983.


  221. G. S. Kramer and G. M. Wilkowski, "Investigation of Fracture Initiation Behavior of Spiral Weld Pipe Subjected to Both Internal Pressure and Secondary Longitudinal Loads,” Fifth Biennial Joint Technical Meeting on Line Pipe Research, sponsored by A.G.A. Pipeline Research Committee and European Pipeline Research Group, September, 1983.


  222. G. M. Wilkowski, “Studies on Heavy-Wall Pipeline Component Toughness Requirements Versus Full-Scale Fracture Behavior,” Fifth Biennial Joint Technical Meeting on Line Pipe Research, sponsored by A.G.A. Pipeline Research Committee and European Pipeline Research Group, September, 1983.


  223. G. M. Wilkowski, “Elastic-Plastic Fracture Studies Using the d-c EP Method,” Proceedings of a CSNI Workshop on Ductile Fracture Test Methods, published by OECD, Paris, France, 1983, pp. 63-74.


  224. Wilkowski, G., Scott, P., and Maxey, W., “Design and Optimization of Mechanical Crack Arrestors for Pipelines,” PRCI (NG-18) Report Number 134, July 1983.


    225. 1982

  225. G. M. Wilkowski and M. F. Kanninen, “Fracture of Circumferentially Cracked Type 304 Stainless Steel Pipes in Bending - The Net-Section-Collapse Analysis,” Presented at ASTM 15th National Symposium on Fracture Mechanics, June, 1982.


  226. G. M. Wilkowski, J.O. Wambaugh and K. Prabhat, "Single Specimen J-Resistance Curve Evaluations Using the Direct-Current Electric Potential Method and a Computerized Data Acquisition System,” Presented at ASTM 15th National Symposium on Fracture Mechanics, ASTM STP 833, June, 1982, pp. 553-576.


  227. M. F. Kanninen, G. M. Wilkowski, J. Pan, J. Ahmad, C. W. Marschall, R. Gilbert, C. H. Popelar, and D. Broek, “The Development of a Plan for the Assessment of Degraded Nuclear Piping by Experimentation and Tearing Instability Fracture Mechanics Analysis,” Proceedings of Tenth Water Reactor Safety Research Information Meeting, NUREG/CP-0041, Vol. 4, October, 1982.


    228. 1981

  228. R. J. Eiber, G. M. Wilkowski, J. F. Kiefner, and W. A. Maxey, “Fracture Control in Gas Pipelines,” Presented at Canadian Gas Association's 4th National Technical Conference, Vancouver, British Columbia, October 26, 1981.


  229. G. M. Wilkowski and R. J. Eiber, “Evaluation of Tensile Failure of Girth Weld Repair Grooves in Pipe Subjected to Offshore Laying Stresses,” ASME Journal of Energy Technology, March, 1981, pp. 48-57.


  230. G. M. Wilkowski, A. Zahoor, and M. F. Kanninen, “A Plastic Fracture Mechanics Prediction of Fracture Instability in a Circumferentially Cracked Pipe in Bending - Part II, Experimental Verification on a Type 304 Stainless Steel Pipe,” Journal of Pressure Vessel Technology, Vol. 103, No. 4, Nov. 1981, pp. 359-365.


  231. R. J. Eiber, G. M. Wilkowski, and W. A. Maxey, “Problems in Using the Drop-Weight Tear Test on High Toughness Line Pipe Steels,” Presented at API Standardization Conference, June, 1981.


  232. G. M. Wilkowski and W. A. Maxey, “Applications of the Electric Potential Method for Measuring Crack Growth in Specimens, Flawed Pipes, and Pressure Vessels,” Presented at ASTM 14th National Symposium on Fracture Mechanics, Los Angeles, California, ASTM STP 791, June 30, 1981.


  233. G. M. Wilkowski, J. Ahmad, A. Zahoor, I. S. Abou-Sayed, and M. F. Kanninen, “Dynamic Fracture of Circumferentially Cracked Type 304 Stainless Steel Pipes,” ASTM STP 803, Vol. II, October, 1981, pp. II-331 to II-352.


  234. G. M. Wilkowski, “Studies on the Precracked Drop-Weight Tear Test Specimen to Predict Ductile Fracture Arrest in Pipelines,” American Gas Association/European Pipeline Research Group - Seminar IV, September 1981.


  235. G. M. Wilkowski, “Design and Optimization of Mechanical Crack Arrestors,” American Gas Association/European Pipeline Research Group - Seminar IV, September 1981.


    236. 1980

  236. G. M. Wilkowski, W. A. Maxey, and R. J. Eiber, “Use of the DWTT Energy for Predicting Ductile Fracture Behavior in Controlled-Rolled Steel Line Pipes,” Canadian Metallurgical Quarterly, Vol. 19, 1980, pp. 59-77.


  237. Wilkowski, G. M., R. J. Eiber, “The Evaluation of Ductile Fracture Propagation Behavior in Frozen Soil,” Battelle report to Northwest Alaskan Pipeline Corporation, September 1980.


    238. 1979

  238. G. M. Wilkowski and R. J. Eiber, “Inherent Safety Factors in the API Girth Weld Defect Tolerance Analysis,” Presented at American Welding Society Pipeline II Conference, Houston, Texas, February 12-14, 1979.


  239. G. M. Wilkowski and R. J. Eiber, “Comparisons Between R-Curve Toughness Measurements, Impact Energy Data and Full-Scale Ductile Fracture of Cylindrical Vessels,” PVP Paper 79-PVP-115, June 25, 1979.


  240. M. E. Mayfield, W. A. Maxey, and G. M. Wilkowski, “Fracture Initiation Tolerance of Line Pipe,” Paper F in 6th Symposium on Line Pipe Research, American Gas Association, Catalog No. L30175, November 1979.


    241. 1978

  241. G. M. Wilkowski and R. J. Eiber, “Problems in Using the Charpy & DWTT for High Toughness Q&T Steels, What Does Charpy Energy Really Tell Us?” Published by ASM, ISBN 0-87170-027-1, February 26-March 2, 1978, pp. 201-226.


  242. G. M. Wilkowski and R. J. Eiber, “Ductile Fracture Propagation Resistance for Rising Shelf Controlled-Rolled Steels, What Does Charpy Energy Really Tell Us?” Published by ASM, ISBN 0-87170-027-1, February 26-March 2, 1978, pp. 108-132.


  243. W. A. Maxey, G. M. Wilkowski, and J.F. Kiefner, “Fracture Initiation and Propagation in Underwater Pipeline,” Presented at 1978 Off-shore Technology Conference, OTC Paper 3303, May 9-12, 1978.


  244. M. F. Kanninen, D. Broek, G. T. Hahn, C. W. Marschall, E. F. Rybicki, and G. M. Wilkowski, “Towards an Elastic-Plastic Fracture Mechanics Predictive Capability for Reactor Piping,” Nuclear Engineering and Design, Vol. 48, 1978, pp. 117-134.


  245. G. M. Wilkowski and R. J. Eiber, “Review of Fracture Mechanics Approaches to Defining Critical Size Girth Weld Discontinuities,” WRC Bulletin 239, July, 1978.


    246. 1977

  246. J. F. Kiefner, W. A. Maxey, G. M. Wilkowski, and R. J. Eiber, “The Magnitude and Effects of Residual Stress in Line Pipe,” Presented at 1977 AIME Mechanical Working Conference, January 26-27, 1977, Pittsburgh, Pennsylvania.


  247. G. M. Wilkowski and R. J. Eiber, “Evaluation of the Inherent Safety Factors in the Tentative API Girth Weld Defect Tolerance Approach,” American Gas Association, Catalog No. L51385, June 1977.


  248. G. M. Wilkowski, W. A. Maxey, and R.J. Eiber, “Use of a Brittle Notch DWTT Specimen to Predict Fracture Characteristics of Line Pipe Steels,” Presented at ASME 1977 Energy Technology Conference, Houston, Texas, Paper 77-Pet-21, September 18-22, 1977.


    249. 1976

  249. Kanninen, M. F., Broek, D., Marschall, C. W., Rybicki, E. F., Sampath, S. G., Simonen, F. A., and Wilkowski, G. M., “Mechanical Fracture Predictions for Sensitized Stainless Steel Piping with Circumferential Cracks,” EPRI Report NP-192, September 1976.




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