中南大学学报（自然科学版）2011，Vol.42Issue(12)：3851-3857,7.
增强纤维复合材力学性能指标概率分布类型
Probability distribution of mechanical property of fiber reinforced polymer
摘要
Abstract
In order to decide the probability distribution type of mechanical property of fiber reinforced polymer(FRP), tensile strength, longitudinal modulus and thickness properties were examined. The four probability distributions were compared on the basis of goodness of fit(Chi-Square, Kolmogorov-Smirnov, Anderson-Darling), based on near 1 000 mechanical property data sets of FRP. A standard procedure based on Weibull distributions for determining nominal strength was proposed and compared with characteristic value prescribed by three design standards. The results show that the Weibull distribution can be used to characterize ultimate tensile strength and longitudinal modulus, the Lognormal distribution is suitable for thickness, and there is weak relation between the three variables. The procedure can well estimate the nominal value of FRP and is more reasonable and safer than the design standards.关键词
增强纤维布/力学性能/概率分布/拟合优度检验/标准值Key words
fiber reinforced polymer/ mechanical property/ probability distribution/ goodness of fit/ nominal value分类
建筑与水利引用本文复制引用
吴毅彬,金国芳..增强纤维复合材力学性能指标概率分布类型[J].中南大学学报（自然科学版）,2011,42(12):3851-3857,7.基金项目
国家自然科学基金资助项目(50621062) （50621062）
