用Weibull模数表征炭纤维增强树脂基复合材料的力学性能  

CHARACTERIZATION OF THE MECHANIC PROPERTIES OF CFRP WITH WEIBULL DISTRIBUTION THEORY

作　　者：杨永岗[1] 李润民[1] 贺福[1] 王茂章[1] 

机构地区：[1]中科院山西煤炭化学研究所

出　　处：《炭素技术》1996年第5期1-4,共4页Carbon Techniques

摘　　要：因为单向炭纤维增强树脂基复合材料（ＵＤ－ＣＦＲＰ）属于脆性材料，它的力学性能如层间剪切强度（ＩＬＳＳ）的大小依赖于ＵＤ－ＣＦＲＰ中随机分布的缺陷。本文使用经典的Ｗｅｉｂｕｌｌ分布理论研究了ＣＦ表面处理对ＵＤ－ＣＦＲＰ之ＩＬＳＳ的影响，并用线性回归的方法对函数进行参数估计。ＣＦ经表面处理后，ＵＤ－ＣＦＲＰ之ＩＬＳＳ增加约５０％；Ｗｅｉｂｕｌｌ模数ｍ增加约１．５～２倍；Ｃｖ值大为下降。Because carbon fibers reinforced plastic(CFRP)composites belong to brittle materials their mechanic properties such as interlaminar shear strength (ILSS)depend on stochastic defects. The classical Weibull distribution theory was employed to study the influence of carbon fiber surfaee treatment on ILSS of UD-CFRP ,to estimate the parameters of the distribution with linear regression.Afler surface treatmrnt of carbon fiber,the ILSS of UD-CFRP composites has increased about 50%,Weibull modulus,about 1. 5 ￣2times and coefficient variation decreased greatly.

关 键 词：炭纤维 复合材料 强度 力学性质 Weibull模数 

分 类 号：TQ327.3[化学工程—合成树脂塑料工业]