Tension-Compression atigue Behavior of Carbon Fiber Reinforced Epoxy Quasi-Isotropic Laminated Composites Subjected to Low Energy Impact

摘要

Tension-Compression fatigue behavior of carbon fiber reinforced epoxy composites subjected to lwo energy impact was investigated. The (0/45/90-45)2S laminates of T300/976 Carbon/Epoxy were utilied. The impact toughness and residual strength after various low impact energies wre measured. The static tensile strength and tension-compression fatigue tests at various levels of stress amplitude were also measureed, The median rank method was applied to predict the statistical probability of fatigue life and residual strength after mpact. The S-N curves for various survival probabilities were estabilshed using the pooled Weibull distribution function. The theoretcal prediction methods were paplied to illustrate the fatigue behavior of thermoset T300/976 Carbon/Epoxy (0/45/90/-45)2S laminated composites.