ASTM WK67495

    New Test Method for High Bypass - Low Bearing Interaction Response of Polymer Matrix Composite Laminates

    (What is a Work Item?)

    Developed by Subcommittee: D30.05 | Committee D30 | Contact Staff Manager


    1. Scope

    This test method determines the uniaxial high bypass - low bearing interaction response of multi-directional polymer matrix composite laminates reinforced by high-modulus fibers using a two-fastener hard point joint specimen. The scope of this test method is limited to net section (bypass) failure modes. Standard specimen configurations using fixed values of test parameters are described for each procedure. A number of test parameters may be varied within the scope of the standard, provided that the parameters are fully documented in the test report. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites for which the laminate is balanced and symmetric with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.


    bearing/bypass properties; bearing strength; bypass strength; composite materials


    Moving test method from D7248 for clarity

    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:
    Stephen Ward


    D30 (21-01)

    Ballot Item Approved as D8387-2021 and Pending Publication