Influence of the particle size and volume fraction on micro-damage of the composites.

The bulk and shear modulus of metal matrix composites with various volume fractions of particles are modified based on the Eshelby's equivalent inclusion method combined with self-consistent scheme. By introducing the modified modulus, a new model, which can predict the particle size effects on the stress-strain relation under interfacial debonding damage between matrix and particles, is established. The results obtained from the present investigation show a better agreement with the experimental data. [ABSTRACT FROM AUTHOR]