Nonlocal plasticity effects on the tensile properties of a metal matrix composite

摘要

For a metal reinforced by aligned short fibres the effect of a material length scale characterising the inelastic deformations of the metal is studied. The elastic-plastic constitutive relations and used here to represent the nonlocal effect are formulated so that the instantaneous hardening moduli depend on the gradient of the effective plastic strain. Numerical cell-model analyses are use to obtain a parametric understanding of the influence of different combinations of the main material parameters.