Bridging Fiber Stress in Metal Matrix Composites: An Analytical Model

Abstract

A modified shear-lag model suitable for describing bridging fiber stress in metal matrix composites subjected to fatigue loadings has been developed. The model considers the influence of the stress field in the fiber/matrix bonded zone as well as the ratio of the reversed to non-reversed sliding length within the interface debonding region of the fiber. Parameters representing the post-processing residual stress field and the load ratio of the applied loading cycle are also considered.