CFRP复合材料层间剪切强度的双模态Weibull分布研究  

STUDIES ON BIMODEL WEIBULL DISTRIBUTION OF ILSS OF CFRP COMPOSITES

作　　者：李润民[1] 贺福[1] 

机构地区：[1]中国科学院山西煤炭化学研究所

出　　处：《玻璃钢／复合材料》1994年第3期7-10,20,共5页Fiber Reinforced Plastics/Composites

摘　　要：本文用极大似然法对双模态Ｗｅｉｂｕｌｌ分布进行参数估计。双模态Ｗｅｉｂｕｌｌ分布函数在双对数坐标系中为曲线，比单模态Ｗｅｉｂｕｌｌ分布能更好地反映实验结果。其分布密度出现两个峰值，说明材料中两种类型的缺陷引起界面脱落破坏。碳纤维经表面处理前后引起的变化主要是层间剪切强度和ｍｉ值的提高。The parameters of bimodel Weibull distribution function are estimated by the maxmium likelihood method.It exhibits curve in double logarithm coordinate system and is fit in with experimental datas more well than single model one does.The fact that the probability density is with two peaks indicates that there are two sort of defects in material which initiate interfacial failure.After surface treatment of carbon fiber,the ILSS and Weibull modulus m i ncrease.

关 键 词：碳纤维 增强塑料 层间剪切强度 

分 类 号：TQ327.3[化学工程—合成树脂塑料工业]