Self-consistent thermo-viscoplastic constitutive model for short fiber composites Conference Paper uri icon


  • The Benveniste reinterpretation of the elastic version of the Mori-Tanaka method is extended to model the viscoplasticity of composites containing voids and/or microcracks. The matrix unified viscoplasticity equations of Miller are cast in a total strain formulation to yield the instantaneous tangent stiffness for use in the micromechanics model. For steady state creep, the composite strain rate is given in terms of the matrix stress rate. Initial yield surfaces are drawn for SiC/Al composites.

published proceedings

  • American Society of Mechanical Engineers, Applied Mechanics Division, AMD

author list (cited authors)

  • Boyd, J. G., Allen, D. H., & Highsmith, A. L.

complete list of authors

  • Boyd, JG||Allen, DH||Highsmith, AL

publication date

  • December 1990