AdTech Systems Research Inc
AdTech Systems Research Inc
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NONLINEAR BEHAVIOR OF UNIDIRECTIONAL SCS-6/TI-6AL-4V COMPOSITE

Ming Xie , Som R. Soni, David Hanley and Aavo Anto

ABSTRACT

A finite element based micromechanics model was developed in the present study for the nonlinear response of the SCS-6/Ti-6Al-4V composite material. The elastic-plastic deformation in the matrix material was modeled, as well as the thermal residual stresses resulted from the high temperature processing. An interphase zone between the fiber and the titanium matrix was included in the finite element model. The progressive damage in the composite material which initiated at the interphase zone was studied. The nonlinear responses of the SCS-6/Ti-6-4 composite under various loadings, including multiaxial loading, were presented.

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