ON IMPROVEMENTS IN MEASURING CRACK-ARREST TOUGHNESS

被引：8

作者：

BONENBERGER, RJ

DALLY, JW

机构：

[1] Mechanical Engineering Department, University of Maryland, College Park

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 1995年 / 32卷 / 6-7期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0020-7683(94)00167-U

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A new specimen is described for determining fracture toughness of metals in a more cost effective manner. The chevron-notched crack arrest (CNCA) specimen is a hybrid design which allows measurement of K-1a and K-1c from a single specimen. Both finite element analyses and a compliance experiment are used to relate K to strains and crack mouth opening, as measured by strain and clip gages, respectively. Fracture experiments using the CNCA specimen on A533-B reactor grade steel are discussed.

引用

页码：897 / 909

页数：13