Modelling the loading rate effects on the fatigue response of composite materials under constant and variable frequency loadings

This paper discusses the effect of loading rate on the static strength and fatigue behavior of glass/polyester and graphite/epoxy composites. It is shown that the rate-sensitivity of the static strength and the fatigue data can be analytically taken into account in the framework of a two-parameter “residual strength” model, inherently fulfilling the Strength-Life Equal-Rank Assumption (SLERA). Based on the static strength's loading rate...