T300／4211复合材料的使用寿命评估

In-service Durability Prediction of T300/4211 Composites

选用Ｔ３００／４２１１环氧基碳纤维增强复合材料，应用半经验数学模型，结合短期不同气候区的自然老化数据和人工加速老化数据，预测其长期使用下（１５年和３０年）力学性能的变化，估算复合材料结构的工作寿命，为复合材料飞机构件的性能评定提供参考依据。

his article presents application of a mathematical prediction model to T300/4211 composites. Com-bining results of natural aging experiments in various climatic conditions and results of accelerated aging ex-periments,the degration in mechanical properties of material under long term service(15 years and 30 years)is predicted,and life-time of structure is estimated.The result would be basis in evaluating the reli-ability for CFRP parts of aircraft.