Volume 20, Issue 2 (March 1992)

    Crack Tip Opening Displacement (CTOD) Toughness Evaluation by ASTM E 1290 and BS5762: A Comparative Analysis

    (Received 27 March 1991; accepted 26 August 1991)

    CODEN: JTEOAD

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    Abstract

    ASTM Committee E-24 on Fracture has recently standardized the crack tip opening displacement (CTOD) measurement method. Three major differences between the ASTM E 1290-89 method and British Standard BS5762:1979 are outlined, and the influence of these differences on the critical crack initiation CTOD value is studied. The study is based on a typical fatigue crack and slow crack growth front profile. A difference of up to 6% in the CTOD values between the two standards, irrespective of the slow crack growth size, was found in the present study. However, a marginal ditterence of only 2% in the initiation CTOD value could be observed for the slow crack growth situation considered.


    Author Information:

    Bhattacharya, S
    Centre for Materials Science and Technology, Indian Institute of Technology-Delhi, New Delhi,

    Kumar, AN
    Centre for Materials Science and Technology, Indian Institute of Technology-Delhi, New Delhi,


    Stock #: JTE11906J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11906J

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    Author
    Title Crack Tip Opening Displacement (CTOD) Toughness Evaluation by ASTM E 1290 and BS5762: A Comparative Analysis
    Symposium , 0000-00-00
    Committee E08