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Abstract

In ongoing work on subsized irradiated three point bend (3PB) specimens in AISI 316LH stainless steel it was found that only the dimensional analysis approach for calculating current crack lengths yielded consistent results. To obtain clear insight into the efficacy of dimensional analysis for the derivation of key curves, a critical review, more or less extensive, was carried out. The key curves included ERNST analysis derived ones, found to be successful in the study of subsized 3PB specimens. Further developed, at JRC, to the analysis of beyond J- controlled crack growths was included as well. The Battelle-Columbus Laboratories key-curves consisting in a number of power-law segments are discussed. A tentative effort to calculate crack growths using the EPRI handbook for fully-plastic solutions was made. Finally, the displacement based key curve (DBKC) approach was studied. The experiments run in support of this study made use of 4T (in plane dimension) and 2T compact tensile specimens in austenitic steel at temperatures up to 550 degrees C. Additional results on sub-sized 3PB are also given

Additional information

Authors: BERNARD J JRC-ISPRA, JRC-ISPRA
Bibliographic Reference: THIRD INTERNATIONAL SYMPOSIUM ON NONLINEAR FRACTURE MECHANICS, KNOXVILLE (USA), OCT. 6-8, 1986 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32924 ORA
Availability: Can be ordered online
Record Number: 1989126012700 / Last updated on: 1989-03-01
Category: PUBLICATION
Available languages: en