ASTM WK67477

    New Test Methods for Standard Test Method for Determination of the Mode II Interlaminar Fatigue Crack Growth Rate and Onset of Unidirectional Fiber Reinforced Polymer Matrix Composites Using the End-Notched Flexure (ENF) Test

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    Developed by Subcommittee: D30.06 | Committee D30 | Contact Staff Manager


    1. Scope

    1.1 This test method describes the determination of the mode II interlaminar fatigue growth of unidirectional fiber-reinforced polymer laminates under cyclic mode II shear loading using the end-notched flexure (ENF) test. 1.2 This method is limited to use with composites consisting of unidirectional carbon-fiber and glass-fiber reinforced laminates. This limited scope reflects the experience gained in round robin testing. This test method may prove useful for other types and classes of composite materials; however, certain interferences have been noted (see Section 6).


    Inerlaminar fatigue crack growth da/dn G fracture


    The data is being evaluated and developed for use in damage tolerance in the composites industry. There is a need to establish test methods and proper ways to measure and reduce data.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    William Johnston

    Draft Under Development