三维针刺C/C复合材料面内压缩失效行为研究

材料导报, 2011, 25(14): 103-106.

三维针刺C/C复合材料面内压缩失效行为研究

牛学宝 ^1, , 张程煜 ^2, , 乔生儒 ^3, , 韩栋 ^4, , 李玫 ^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: 高等学校学科创新引智计划(B08040) 新世纪优秀人才支持计划(NCET-08-0460) 国家自然科学基金(50702045)

关键词： C/C复合材料 , 压缩性能 , 应力-应变行为 , 破坏机理

Study on the In-plane Compressive Failure Behavior of 3D Needled C/C Composites

通过研究三维针刺C/C复合材料面内压缩失效行为,发现应力-应变行为包括起始段的非线性滞弹性、线弹性、非线性损伤及应力下降失效4个阶段,循环加载-卸载实验表明线弹性阶段应力-应变行为的重复性好,而非线性损伤阶段则与加载历程有关.面内压缩失效主要是端部分层脱粘和分层劈裂,受纤维/基体界面结合强度影响较大.

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材料期刊网

三维针刺C/C复合材料面内压缩失效行为研究

Study on the In-plane Compressive Failure Behavior of 3D Needled C/C Composites

参考文献