Effect of Strain Hardening on the Estimation of J-Integral in Compact Tension Specimens

被引：0

作者：

Al-Abduljabbar, A. ^{[1
]}

机构：

[1] Department of Mechanical Technology, Riyadh College of Technology, Riyadh

来源：

Journal of King Saud University - Engineering Sciences | 2004年 / 16卷 / 02期

关键词：

Analytic expressions - Compact tension specimen - Fracture parameter - Hardening effects - Hardening materials - Load-displacement curve - Lower-bound approaches - Plastic limit loads;

D O I：

10.1016/S1018-3639(18)30793-1

中图分类号：

学科分类号：

摘要：

Compact tension (CT) specimen testing is used to compute the fracture toughness parameter J-integral for different materials using load-displacement curve. In this work, J is investigated for compact tension specimen for a strain-hardening material using plastic limit-load analysis. The hardening effect is accounted for through a simple linear hardening curve using a lower bound approach. Analytic expression for fracture parameters are derived from basic formulation. Results illustrated for different cases show that as the material strain hardening increases, the J-Integral increases especially for shallow crack specimens. © 2004 (A.H. 1424) King Saud University

引用

页码：305 / 316

页数：11

共 12 条

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