经编用钼丝纤维强力的概率分布分析  

Analysis on the Strength Distribution of Molybdenum Wire

作　　者：贾伟[1] 陈南梁[1] 傅婷[1] 

机构地区：[1]东华大学纺织学院,上海201620

出　　处：《材料导报（纳米与新材料专辑）》2011年第1期277-279,共3页

基　　金：中央高校基本科研业务费专业资金(2010A06-3-1)

摘　　要：钼丝是用于制造空间可展开网状天线反射体的关键材料之一,具有高强度、低伸长、低热膨胀系数等特性。对钼丝纤维分别在3种不同拉伸隔距下进行强力测试与统计分析,发现钼丝纤维强力符合二参数和三参数的Weibull分布规律,并且更适合采用三参数Weibull分布来描述;随着拉伸隔距的增加,钼丝纤维的强度下降,强度分散性减小,表现出明显的尺寸效应。Molybdenum wire is one of key materials for the reflector of the mesh-surface antenna, which has high strength, low elongation, low thermal expansion coefficient and other excellent characteristics. Weibull distribution function is used to analyze the strength distribution of molybdenum wire stretch at 3 different gauges. It is found that the strength of molybdenum wire agree well with both two- and three-parameter Weibull distribution, and is preferred to be expressed by three-parameter Weibull model. The strength and the variation coefficient of the strength decrease with the gauge increasing which shows significant size effect.

关 键 词：钼丝Weibull分布强力 网状天线可靠性尺寸效应 

分 类 号：TQ343.2[化学工程—化纤工业]