Volume 21, Issue 1 (January 1993)

    Monitoring Fatigue Crack Propagation in Compact Tension Specimens via Remote Sensing of Back Face Strain

    (Received 10 December 1991; accepted 29 May 1992)

    CODEN: JTEOAD

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    Abstract

    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.


    Author Information:

    Simha, KRY
    Assistant professor and principal research scientist, Indian Institute of Science, Bangalore,

    Hande, HSS
    Graduate student, Michigan Technological University, Houghton, MI

    Arora, PR
    Assistant professor and principal research scientist, Indian Institute of Science, Bangalore,


    Stock #: JTE11734J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11734J

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    Author
    Title Monitoring Fatigue Crack Propagation in Compact Tension Specimens via Remote Sensing of Back Face Strain
    Symposium , 0000-00-00
    Committee E08