MONITORING FATIGUE CRACK-PROPAGATION IN COMPACT TENSION SPECIMENS VIA REMOTE-SENSING OF BACK FACE STRAIN

被引：0
|
作者：
SIMHA, KRY [1 ]
HANDE, HSS [1 ]
ARORA, PR [1 ]
机构：
[1] MICHIGAN TECHNOL UNIV,HOUGHTON,MI 49931
来源：
JOURNAL OF TESTING AND EVALUATION | 1993年 / 21卷 / 01期
关键词：
FATIGUE CRACK PROPAGATION (FCP); BACK FACE STRAIN (BFS); MEAN LOAD; COMPACT TENSION (CT);
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Back face strain (BFS) measurement is now well-established as an indirect technique to monitor crack length in compact tension (CT) fracture specimens [1,2]. Previous work [2] developed empirical relations between fatigue crack propagation (FCP) parameters, BFS, and number of cycles for CT specimens subjected to constant amplitude fatigue loading. These predictions are experimentally validated in terms of the variations of mean values of BFS and load as a function of crack length. Another issue raised by this study concerns the validity of assigning fixed values for the Paris parameters C and n to describe FCP in realistic materials.
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页码：3 / 8
页数：6
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