通过对三维四向编织复合材料薄板试件的宏观压缩破坏实验及其声发射信号的分析,研究了该材料的抗压力学性能及其失效机理.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,编织角小时,材料表现为脆性特征;当编织角大于某个临界角时,材料的应力-应变曲线趋于非线性,更多地表现为屈曲破坏.试验过程中采集到的声发射信号能有效地监测材料内部损伤演化过程.
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