ASTM WK71519

    Revision of E561 - 19 Standard Test Method for KR Curve Determination

    (What is a Work Item?)

    Active Standard: E561 - 20

    Developed by Subcommittee: E08.07 | Committee E08 | Contact Staff Manager



    WK71519


    Keywords

    effective crack extension; fracture mechanics; fracture resistance; fracture toughness; KR ; KR curve; linear elastic; plane stress; plastic zone; standard test method; stress intensity factor;;

    Rationale

    WK69058 for E1823 had a recent ballot in 2019 on the definition of Kc and there were some negatives around using the work plane-stress when referring to non plane-strain conditions, either ideal plane-stress or more commonly the transition region between ideal plane-strain and plane-stress. This work item will address a similar issue using in the definition of apparent fracture toughness, Kapp. It is also the intent to add the definition of Kapp defined here in E561 to E1823.

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    Work Item Status

    Date Initiated:
    01-21-2020

    Technical Contact:
    Kimberly Maciejewski

    Status:
    Draft Under Development