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    Analysis of Characterization Methods for Inelastic Composite Material Deformation Under Multiaxial Stresses

    Published: 01 January 2000

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    Off-axis tension (OAT) tests and biaxially loaded cruciform-shaped specimen (BC) tests on unidirectional fiber-reinforced metal matrix composites are subjected to detailed analyses using a newly developed model. The results indicate that the off-axis tension test is a viable method for biaxial stress-strain characterization of composites in the nonlinear deformation range. It is found that, besides being much more expensive to conduct, the specific cruciform-shaped specimen test considered in the study is less amenable to unambiguous interpretation.


    multiaxial, analysis, testing, metal matrix composite, modeling

    Author Information:

    Ahmad, J
    Research Applications, Inc., San Diego, CA

    Newaz, GM
    Wayne State University, Detroit, MI

    Nicholas, T
    Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH

    Committee/Subcommittee: E08.04

    DOI: 10.1520/STP13497S