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Crack initiation condition in the specimens of ductile materials

✍ Scribed by Wei-Hua Tai

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
243 KB
Volume
51
Category
Article
ISSN
0013-7944

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✦ Synopsis

In this paper, the elasto-plastic Finite Element Method was used to simulate the ductile fracture initiation of four kinds of specimens made of low-carbon steel No. 20 (Chinese steel), and the damage parameter V D was calculated for these specimens. The results showed that the damage mechanics criterion lid proposed by the author and B. X. Yang [Engng Fracture Mech. 27, 371-386 (1987)], could be applied to predict the crack initiation. Also, the relationship between the damage parameter Vt~ and the crack tip opening displacement was discussed in this study.

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