Creep models for metal matrix composites with long brittle fibers (Q1354935)

Creep models for metal matrix composites reinforced by long brittle fibers with weak interfaces are presented which include effects of fiber breaks and the consequential stress relaxation in the broken fibers. The creep strain and the creep rupture time are calculated when global load sharing occurs. Analyses are conducted for composites with a wide range of fiber volume fractions, Young's modulus of the fibers and the matrix, interfacial sliding stress and Weibull properties for the strength of the fibers.