三维五向炭纤维/酚醛编织复合材料的压缩性能及破坏机制

复合材料学报, 2008, 25(1): 133-139. doi: 10.3321/j.issn:1000-3851.2008.01.023

三维五向炭纤维/酚醛编织复合材料的压缩性能及破坏机制

李典森 ^1, , 刘子仙 ^2, , 卢子兴 ^3, , 冯志海 ^4,

1.北京航空航天大学,航空科学与工程学院,北京,100083

2.北京航空航天大学,航空科学与工程学院,北京,100083

3.北京航空航天大学,航空科学与工程学院,北京,100083

4.航天材料工艺研究所,北京,100076

基金项目: 北京航空航天大学校科研和教改项目北京市教委共建项目(XK100060522) 航空基础科学基金(04B51045)

关键词：三维五向编织 , 复合材料 , 压缩 , 破坏机理 , 炭纤维/酚醛

Compressive properties and failure mechanism of three dimensional and five directional carbon fiber/phenolic braided composites

针对不同编织角、不同纤维体积分数的三维五向炭纤维/酚醛编织复合材料在不同温度下进行了纵向(编织方向)压缩和横向压缩试验,获得了其主要压缩力学性能,分析了编织参数、温度对材料压缩力学性能的影响.对试件断口进行了宏观及扫描电镜观察,从宏、细观角度研究了材料的变形及其破坏机制.结果表明,三维五向炭纤维/酚醛编织复合材料的压缩应力-应变曲线呈现明显的非线性特征,且温度效应明显;编织角和纤维体积分数是影响材料压缩性能的主要参数.三维五向炭纤维/酚醛编织复合材料的纵向压缩与横向压缩具有完全不同的破坏机制.

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三维五向炭纤维/酚醛编织复合材料的压缩性能及破坏机制

Compressive properties and failure mechanism of three dimensional and five directional carbon fiber/phenolic braided composites

参考文献