3D Hi-Nicalon/SiC复合材料室温三点弯曲强度分布

复合材料学报, 2005, 22(5): 130-133. doi: 10.3321/j.issn:1000-3851.2005.05.021

3D Hi-Nicalon/SiC复合材料室温三点弯曲强度分布

吴守军 ^1, , 成来飞 ^2, , 董宁 ^3, , 张立同 ^4, , 徐永东 ^5,

1.西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072

2.西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072

3.西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072

4.西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072

5.西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072

基金项目: 教育部优秀青年教师资助计划(教育部教人司[2002]383) 中国科学院资助项目(50272053) 教育部跨世纪优秀人才培养计划(教育部科教司[2002]8)

关键词： Hi-Nicalon/SiC复合材料 , 弯曲强度 , Weibull分布 , Kolmogorov检验

FLEXURAL STRENGTH DISTRIBUTION OF 3D HI-NICALON/SiC IN THREE POINT BENDING TEST AT ROOM TEMPERATURE

根据3D Hi-Nicalon/SiC复合材料室温三点弯曲强度实验数据,以Weibull分布为假设分布,采用图解法结合逐步回归优选法进行参数估计,探讨了该复合材料的弯曲强度分布.并根据Kolmogorov非参数检验,对假设分布进行了检验.结果表明:该3D Hi-Nicalon/SiC复合材料室温三点弯曲强度可以采用σu=0,Weibull模数m=8.1545的两参数Weibull分布表征,能够采用求解的Weibull分布很好地预测该3D Hi-Nicalon/SiC复合材料的室温弯曲强度.

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