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2.5维机织复合材料经向拉伸弹性模量预测与试验验证

, PP. 198-204

Keywords: 2.5维,机织复合材料,经向,弹性力学性能,切片

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Abstract:

采用沿经向切片积分的方法计算2.5维机织复合材料的宏观经向拉伸弹性模量,与试验结果和传统的体积平均合成方法进行了对比,分析表明,本文中的方法能够有效提高传统体积平均法的预测精度。利用文中的方法分析了2.5维机织复合材料沿在机织循环过程中的经向拉伸弹性模量分布情况,并且对相关机织结构的2.5维机织复合材料进行了试验研究。研究发现,经纱弯曲程度较小的直联结构和添加平直经纱的衬经结构能够有效提高2.5维机织复合材料的经向拉伸弹性模量,并且能够改善经向拉伸应力-应变曲线的非线性。

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