| 三维针刺C/C复合材料面内压缩失效行为研究 |
| |
| 引用本文： | 牛学宝,张程煜,乔生儒,韩栋,李玫. 三维针刺C/C复合材料面内压缩失效行为研究[J]. 材料导报, 2011, 25(14): 103-106 |
| |
| 作者姓名： | 牛学宝 张程煜 乔生儒 韩栋 李玫 |
| |
| 作者单位： | 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： | 国家自然科学基金(50702045); 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) |
| |
| 摘 要： | 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。
|
| 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 |
| |
| NIU Xuebao,ZHANG Chengyu,QIAO Shengru,HAN Dong,LI Mei. Study on the In-plane Compressive Failure Behavior of 3D Needled C/C Composites[J]. Materials Review, 2011, 25(14): 103-106 |
| |
| Authors: | NIU Xuebao ZHANG Chengyu QIAO Shengru HAN Dong LI Mei |
| |
| Affiliation: | NIU Xuebao,ZHANG Chengyu,QIAO Shengru,HAN Dong,LI Mei(National Key Laboratory of Thermostructure Composite Materials,Northwestern Polytechnical University,Xi'an 710072) |
| |
| Abstract: | The in-plane compressive failure behavior of three-dimensional(3D)needled C/C composites was studied and the results show that the stress-strain behavior is found to consist of four domains,including non linear anelasticity domain at the beginning of the curve,the linear elasticity domain,the non linear damage domain and the failure domain with decreasing stress.The studies of cyclic loading-unloading experiment indicate that the stress-strain behavior of the linear elasticity domain has a good repeatabilit... |
| |
| Keywords: | C/C composites compressive properties stress-strain behavior failure mechanism |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
