✦ LIBER ✦

Control of crack extension in J-Integral testing

✍ Scribed by Tao Xue-Wen

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 86 KB
Volume: 16
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(82)90049-2

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✦ Synopsis

An approach to an understanding of the effect of the crack root-radius on stress intensity factors (K,, I&r, Km) has been made by the photoelastic method.

Preliminary experimental results shown that when p < 0.04 mm, there seems to be the possibility of obtaining more satisfactory testing result of K,. When p = 0.12 mm, compared with the theoretical values there is no obvious deviation yet (-4.83%). The effect of p is greater on Ku than on Kr. The test values of Km seem insensitive to the variation of p.

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