Modeling Continuous Fiber Metal Matrix Composite as an Orthotropic Elastic Plastic Material

SEDL / STP / STP1032-EB / STP22853S

Modeling Continuous Fiber Metal Matrix Composite as an Orthotropic Elastic-Plastic Material

Sun, CT
Professor, School of Aeronautics and Astronautics, Purdue University, West Lafayette, IN

Pages: 13 Published: Jan 1989

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Abstract

An orthotropic plasticity model for describing the elastic-plastic behavior of metalmatrix composites is reviewed. This plasticity model is derived based on a plastic potential function which is a quadratic form in stresses. Simple uniaxial loading on off-axis specimens is used to determine the parameters in the model. A boron-aluminum composite is used in the experimental validation of the model.

Keywords:
orthotropic plasticity, boron-aluminum composites, plastic Poisson's ratio, micromechanical model, off-axis testing

Paper ID: STP22853S
Committee/Subcommittee: D30.04
DOI: 10.1520/STP22853S

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