Volume 17, Issue 2 (April 1995)

    Effect of Specimen Tab Configuration on Compression Testing of Composite Materials

    CODEN: CTROAD

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    Abstract

    Standard Test Method for Compressive Properties of Unidirectional or Cross-Ply Fiber-Resin Composites (ASTM D 3410) for compression testing of composite materials recommends that low-carbon steel or a glass/epoxy composite be used as the tab material, and that the tabs be tapered. However, many details remain unspecified. An analytical study of tab configurations was performed in the present study to determine the effect of type of tabbing material and tab-taper angle on the stress distributions within a unidirectional composite specimen in compression. More compliant tab materials and shallower tab-taper angles yielded less stress concentration in the tab-tip region of the specimen. Therefore, specimens with these tab configurations should yield higher measured compressive strengths since premature failure at the tab tip is less likely to occur. Although there are relatively few experimental data available for different tab materials and tab-taper angles, those that are available show the same trends as predicted by the present analytical study.


    Author Information:

    Adams, DF
    Post-Doctoral research associate and professor, University of Wyoming, Laramie, WY

    Xie, M
    Post-Doctoral research associate and professor, University of Wyoming, Laramie, WY


    Stock #: CTR10469J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10469J

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    Author
    Title Effect of Specimen Tab Configuration on Compression Testing of Composite Materials
    Symposium , 0000-00-00
    Committee D30