STUDY ON THE DUCTILE FRACTURE OF A SURFACE CRACK (1ST REPORT, CRACK GROWTH OF SURFACE CRACK AND THE FINITE ELEMENT ANALYSIS).

被引：0
作者：
Kikuchi, Masanori
Nishio, Tamaki
Yano, Kazunori
Machida, Kenji
Miyamoto, Hiroshi
机构：
来源：
Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A | 1988年 / 54卷 / 497期
关键词：
FRACTURE MECHANICS - MATHEMATICAL TECHNIQUES - Finite Element Method;
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学科分类号：
摘要：
Ductile fracture of surface crack is studied experimentally and numerically. At first, fatigue pre-crack is introduced and the aspect ratios of the growing fatigue crack are measured. Then the ductile fracture test is carried out and the distributions of SZW and DELTA a are measured. It is noted that DELTA a is largest where phi , the angle from surface, is nearly 30 degree . J integral distribution is evaluated by the finite element method, and it is shown that the J value is also the largest where phi is near 30 degree .
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页码：64 / 70
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