ISSN: 0090-3973
Page Count: 6

Evaluation of the J Integral for the Compact Specimen
Clarke, GA
Senior engineer and advisory engineer, Westinghouse R&D Center, Pa.

Landes, JD
Senior engineer and advisory engineer, Westinghouse R&D Center, Pa.

Abstract

Methods for determining the J integral from an experimental load versus load point displacement curve for the compact specimen are discussed. The original analysis by Merkle and Corten, which accounted for the tension component in the compact specimen, is presented along with a simplified version (of the analysis) that is shown to be essentially equivalent to the original formulation. Based on experimental results from Landes, Walker, and Clarke, a further simplified expression is recommended as the best expression to use for determining J for the compact specimen.

Keywords:
fractures (materials), failure, cracking (fracturing), stresses, strains

Paper ID: JTE10222J
DOI: 10.1520/JTE10222J
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