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复合材料Z-pin的压缩试验研究

Xiao-xu WANG,Li CHEN

Hangkong Cailiao Xuebao/Journal of Aeronautical Materials（2011）

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Abstract
通过三种复合材料Z-pin的轴向压缩试验,观察了各Z-pin的压缩行为,分析了三种复合材料Z-pin在不同长度时的极限应力及其失效形式.结果表明,直径为0.50mm的碳纤维Z-pin的压缩性能最好,其各长度Z-pin所能承担的极限应力都较大.直径0.28mm的碳纤维Z-pin易发生失稳现象,芳纶纤维Z-pin在压缩力的作用下,接触端容易受到破坏.两种碳纤维Z-pin临界应力的理论值与试验值吻合较好,但芳纶纤维Z-pin的临界应力的试验值比理论值偏低.
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Key words
Composite materials,Compression experiment,Critical stress,Z-pins
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