ASTM WK45146

    Work Item: ASTM WK45146 - Revision of E647 - 13e1 Standard Test Method for Measurement of Fatigue Crack Growth Rates

    (What is a Work Item?)

    Active Standard: E647 - 13a

    Developed by Subcommittee: E08.06 | Committee E08 | Contact Staff Manager



    1. Rationale

    The following item for ballot is intended as an update to ASTM E647 Annex A3 to modify the back-face strain compliance equation for the ESE(T) specimen. The rationale for this modification is to have consistency between the form of the equation being proposed for the C(T) specimen (in a separate ballot item) and that being proposed in this item. The new equation also permits a slightly expanded range of validity over the current equation.


    Keywords

    constant amplitude; crack size; fatigue crack growth rate; stress intensity factor range;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    02-20-2014

    Technical Contact:
    Steven Thompson

    Item:
    004

    Ballot:
    E08 (14-01)

    Status:
    Negative Votes Need Resolution