Advances in Fracture Toughness Characterization Procedures and in Quantitative Interpretations to Fracture-Safe Design for Structural Steels, by W.S. Pellini. May 1968. Reprinted March 1976 (46 pp) more detail...
The Significance of the a/W Ratio on Fracture Toughness of A-36 Steel, by R.A. Whorley and R.T. Rolfe. September 1992 (34 pp) more detail...
Review and Evaluation of the Toughness of Austenitic Steels and Nickel Alloys After Long-Term Elevated Temperature Exposures, by S. Yukawa. January 1993 (53 pp) more detail...
Metallurgical and Fracture Toughness Studies of A516-70 Steel: (I) Metallurgical Characterization of the HAZ in A516-70 and Evaluation of Fracture Toughness Specimens, by C.F. Lundin, G. Zhou and K.K. Khan and (II) Comparison of the CTOD Fracture Toughness of Simulated and Weldment HAZ Regions in A516 Steel with Deep and Shallow Cracks, by J.A. Smith, R. M. Holcomb and S.T. Rolfe. July 1995 (111 pp) more detail...
Constraint Effects on Fracture Behavior: (1) The Effect of Crack Depth (a) and Crack-Depth to Width Ratio (a/W) on the Fracture Toughness of A533-B Steel; (2) An Analytical Investigation of the Effect of Crack Depth (a) and Crack Depth to Width Ratio (a/W) on the Fracture Toughness of A533-B Steel; and (3) The Significance of Crack Depth (a) and Crack Depth to Width Ratio (a/W) With Respect to the Behavior of Very Large Specimens by J. A. Smith and S. T. Rolfe ? January 1997 (43 pp) more detail...
Crack-Starter Weld Bead Deposition for ASTM E-208 Drop-Weight Testing-- Part 1 -- Qualification of Electrodes for the Crack-Starter Based on P-2 Type Drop-Weight Specimens--ASTM E 208-95a -- PART 2: Determination of the NDT Temperature Using Qualified Electrodes on P-2 Type Specimens with Different Strength Base Materials--ASTM E 208-95a by C. D. Lundin, Peng Liu, Songquin Wen, Ralph Edwards, Raymond Bellamy -- February 2002 (27 pp) more detail...
Indexing Fracture Toughness Data This bulletin contains three reports on activities of the PVRC working group on application of the Master Curve. Two of the reports contain results of analysis of a set of fracture toughness data from the Japanese KIR Committee and the third report contains the results from an MPC Cooperative testing program on the use of the pre-cracked Charpy size specimens to obtain the reference temperature T0. The Japanese KIR Committee conducted a large-scale fracture toughness testing program for Japanese pressure vessel steels. The fracture toughness data, which has been analyzed in the first two of these reports, was developed by this KIR Project. Previous publications of the results from this program concluded that this database is conservatively lower bounded by the existing ASME Boiler and Pressure Vessel Code KIR curve. An alternate KIR curve based on this database was incorporated into ASME Code by Code Case N-610. The objective of these reports is to analyze this database using the new technology in handling fracture toughness, the Master Curve method. This large data analysis was performed to verify the applicability of the Master Curve method. The results affirm that the reference temperature T0 is the superior indexing parameter for fracture toughness of ferritic steels compared to the currently used RTNDT approach. The results also provide a valuable source for establishing the dynamic fracture toughness and crack arrest fracture toughness data trend. The fracture toughness data, which has been analyzed in these reports, was developed by the Japanese KIR Project. The KIR Committee was organized to investigate the effect a 1988 revision to the ASTM Standard E208 would have on the RTNDT temperature used in ASME Sec. III Appendix G. The Reference Temperature, RTNDT,is determined by a combination of the drop-weight NDT temperature and Charpy impact tests and is used with the Km Curve in the ASME Code for the determination of the fracture toughness of the pressure boundary materials. ASTM Standard E208 is the standard method for the determination of the drop weight NDT temperature. In 1988, the ASTM revised the procedure for producing the brittle weld on the drop-weight specimen from a two-pass procedure to a one-pass procedure. This change can produce some differences in the measured NDT temperature. A second objective of the committee was to determine if the KIR curve was the appropriate curve for use with modem Japanese pressure vessel steels. Since the Reference Fracture Toughness Curve (KIR Curve) specified in Appendix G to ASME Boiler and Pressure Vessel Code was developed using mainly NDT temperatures obtained by the two-pass method it was felt that a re-evaluation of the KIR curve was needed. The KIR committee was formed to develop and conduct a research program to reevaluate the KIR Curve. more detail...
