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三维连体织物格栅夹芯材料力学特性实验研究

, PP. 18-23

Keywords: 格栅结构,三维织物,夹芯材料,复合材料,力学性能

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Abstract:

以三维连体织物格栅夹芯材料为研究对象,研究其在平压、剪切载荷作用下的力学特性与破坏模式,并考察格栅分布密度、厚度和泡沫填充等对力学性能的影响,揭示纤维芯柱间的协同作用。结果表明:三维连体织物格栅复合材料及其夹芯材料平压及剪切性能随芯柱纬向间距的增大而减小;三维连体织物格栅夹芯材料芯柱之间的协同作用随着芯柱纬向间距的增大而逐渐增大;大厚度三维连体织物格栅复合材料平压破坏模式主要为芯柱失稳,最终芯柱断裂破坏,剪切破坏模式为芯柱受剪根部断裂。

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