摘要
通过对三维四向编织复合材料薄板试件的宏观压缩实验,研究了三维四向编织复合材料的抗压力学性能。实验结果表明:材料的编织角对其压缩力学性能的影响很大,随编织角的变化,编织复合材料的压缩破坏机制发生了变化。编织角度较小时,材料表现为脆性特征;当编织角度大于某个临界角度时,材料的应力-应变曲线趋于非线性,更多地表现为塑性破坏。
The mechanical properties of three dimensional and four-directional braided composites were investigated by the macroscopic compressive experiments. Experimental results show that the mechanical properties and mechanism of compressive failure of the composites change with the increase of the braided angles. When the braided angle is small, the material behaves as the brittle characteristics. But if the braided angle is larger than a critical angle, the stress-stain curve of specimen approaches nonlinear, behaving mostly as the characteristics of plastic failure.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2007年第7期59-62,66,共5页
Journal of Materials Engineering
关键词
编织复合材料
压缩实验
编织角
破坏机理
braided composite
compressive experiment
braided angle
failure mechanism
