Micromechanical Modeling Tensile and Fatigue Behavior of Fiber-Reinforced Ceramic-Matrix Composites Considering Matrix Fragmentation and Closure

In this paper, micromechanical constitutive models are developed to predict the tensile and fatigue behavior of fiber-reinforced ceramic-matrix composites (CMCs) considering matrix fragmentation closure. Damage fragmentation, interface debonding, fiber’s failure considered in analysis response, closure, debonding repeated sliding hysteresis response. Relationships between established. Experimental density, curves, loops mini, unidirectional, cross-ply, 2D plain-woven SiC/SiC predicted using models. Matrix density changes with increasing or decreasing applied stress, which affects nonlinear strain composite under loading, range loading.