玄武岩纤维丝束强度的Weibull和Gauss分布统计分析

通过假设检验验证了Weibull及Gauss分布模型对玄武岩纤维丝束强度统计分析的适用性,并用2种分布模型对BF-CSH-01、BF-CMD-02和BF-CAH-01 等3种纤维不同长度丝束的拉伸强度分布进行了统计分析。当纤维种类和试样长度变化时,采用2种模型统计的丝束强度的变化规律一致,即3种纤维中BF-CSH-01强度最高,BF-CMD-02的强度分散性最小;同种纤维中,随着试样长度的增加,丝束强度下降,强度分散性减小。2种分布模型相比,采用Weibull 模型计算的丝束强度略高于 Gauss模型,但强度分散性稍大。 

Bundle strength statistics of basalt f iber with Weibull model and G auss model

The applicability of Weibull dist ribution model and Gauss dist ribution model was confirmed by hypothe2sis testing in the bundle st rength statistics of basal fibers. The bundle st rength dist ributions in different lengths of basalt fiber BF2CSH201 , BF2CMD202 and BF2CAH201 were analyzed with both the models. When the fiber and sample length change , the bundle st rength t ransformation t rends are the same in the two models. Among the three kinds of basalt fibers , the fiber BF2CSH201 has the highest bundle st rength and the fiber BF2CMD202 has the smal2 lest variation coefficient . For the same basalt fiber , when the sample length increases , the bundle st rengths and the variation coefficient s of the st rength decrease. A comparison between the Weibull model and Gauss model shows that the former has the higher bundle st rength and a bigger variation coefficient .