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材料导报  2020, Vol. 34 Issue (Z1): 480-485    
  金属与金属基复合材料 |
基于Anderson-Darling检验的复合材料厚板层间拉伸强度性能研究及B基准值
郝新超
中国商飞上海飞机设计研究院,上海 201210
Interlaminar Tensile Strength Behavior and B-basis Value of Thick LaminatesBased on Anderson-Darling Test
HAO Xinchao
COMAC Shanghai Aircraft Design and Research Institute, Shanghai 201210, China
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摘要 国内对于复合材料层间剪切性能的研究较多,但对于层间拉伸强度则研究甚少。本工作针对T800级复合材料厚层压板进行了层间拉伸强度试验,使用k-样本Anderson-Darling检验对试验数据进行统计分析,研究了铺层厚度、温度/湿度和分层缺陷对层间拉伸强度的影响,以期为复合材料在民用飞机上的应用提供数据支撑。试验表明:在5~12.9 mm厚度范围内,厚度不会对层间拉伸应力产生影响;与室温干态相比,高温湿态会降低层压板的层间拉伸应力;分层缺陷严重影响层间拉伸应力,且含分层缺陷的试件的层间拉伸强度受环境影响不明显。利用Anderson-Darling方法进行正态分布的拟合优度检验后,求得无分层缺陷层间拉伸强度B基准值和含可接受分层缺陷层间拉伸强度B基准值。基于以上B基准值求得层间拉伸强度含可接受分层缺陷的B基准折减系数为0.39。
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郝新超
关键词:  复合材料  层间拉伸强度  Anderson-Darling检验  拟合优度检验  B基准    
Abstract: There were many researches on interlaminar shear properties of composites in China, but few on interlaminar tensile strength. The interlaminar tensile strength of T800 thick composite laminates was tested. The k-sample Anderson-Darling test was used to do statistical analysis of the test results, and the influence of thickness, temperature/humidity and acceptable delamination defects on the interlaminar tensile strength were studied to provide data for the application of composite materials on civil aircraft. The test results show that: in the range of 5—12.9 mm thickness, changing the thickness will not affect the interlaminar tensile stress; compared with the room temperature dry state, the elevated temperature wet state reduces the interlaminar tensile stress of the laminate; delamination defects seriously affect the interlaminar tensile strength, and the interlaminar tensile strength of specimens with delamination defects is not significantly affected by the environment. After the goodness-of-fit test of normal distribution by Anderson-Darling method, the B-basis value of the interlaminar tensile strength without delamination defects and the B-basis value of the interlaminar tensile strength with delamination defects were obtained. Based on B-basis value above, the interlaminar tensile strength B-basis reduction factor of acceptable delamination defects was 0.39.
Key words:  composite    interlaminar tensile strength    Anderson-Darling test    goodness-of-fit test    B-basis value
                    发布日期:  2020-07-01
ZTFLH:  TB332  
作者简介:  郝新超,中国商飞上海飞机设计研究院高级工程师,长期从事民用飞机结构设计工作。
引用本文:    
郝新超. 基于Anderson-Darling检验的复合材料厚板层间拉伸强度性能研究及B基准值[J]. 材料导报, 2020, 34(Z1): 480-485.
HAO Xinchao. Interlaminar Tensile Strength Behavior and B-basis Value of Thick LaminatesBased on Anderson-Darling Test. Materials Reports, 2020, 34(Z1): 480-485.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2020/V34/IZ1/480
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