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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
Research Applications, Inc., San Diego, CA
Wayne State University, Detroit, MI
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH