SIZE EFFECT ON THE LOAD-DISPLACEMENT CURVES OF COMPACT SPECIMENS OF SUS 316 STEEL.

被引：0

作者：

Takeuchi, Tomoyuki ^{[1
]}

Yasunaka, Takashi ^{[1
]}

Nishijima, Satoshi ^{[1
]}

机构：

[1] Natl Research Inst for Metals, Tokyo, Jpn, Natl Research Inst for Metals, Tokyo, Jpn

来源：

Bulletin of the JSME | 1986年 / 29卷 / 247期

关键词：

STEEL TESTING;

D O I：

10.1299/jsme1958.29.22

中图分类号：

学科分类号：

摘要：

The size effect on the crack growth in SUS 316 steel was studied by observations of load-displacement curves of many proportional compact specimens with various nominal widths. When the thickness was less than 0. 2 times the width, the critical crack-tip opening-displacement (CTOD) for the start of steady crack growth was proportional to the thickness. The proportional constant was expressed by the experimental constants (yield stress, work-hardening parameters and fracture true stress) obtained by the unidirectional tensile tests. It was concluded that a ductile crack grows when the normal stress ahead of the crack-tip exceeds the fracture true stress of the materials.

引用

页码：22 / 28

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