Elastic modulus prediction for hybrid polymer composites

D. Rodrigue
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引用次数: 0

Abstract

To improve on the mechanical properties of polymers in general, the concept of hybrid composites was developed by using two or more different reinforcements in the same matrix, or by using two or more different sizes of the same reinforcement (auto-hybrid composites). In this case, most of the literature results showed that the resulting elastic modulus can be well approximated by the simple rule of mixture (linear additive law) from the tensile modulus of each reinforcement used alone. But is some cases, a positive deviation from this linear approximation was reported up to a point where an optimum composition can give a modulus above the value of both reinforcements used separately. In this work, a simple model is presented to show that positive deviations are possible and the optimum reinforcement ratio is around 25/75 in terms of the lowest/highest reinforcing particle. The model is also compared with literature data where good qualitative agreements are obtained as a first approximation.
杂化聚合物复合材料的弹性模量预测
为了提高聚合物的力学性能,混合复合材料的概念是通过在同一基体中使用两种或两种以上不同尺寸的增强材料,或使用两种或两种以上不同尺寸的增强材料(自混合复合材料)而发展起来的。在这种情况下,大多数文献结果表明,所得弹性模量可以由单独使用的每种钢筋的拉伸模量很好地近似为简单的混合规则(线性加性定律)。但在某些情况下,从这种线性近似的正偏差被报道到一个点,在这个点上,最佳组合可以给出高于两种增强材料分别使用的值的模量。在这项工作中,提出了一个简单的模型,表明可能存在正偏差,并且就最低/最高增强颗粒而言,最佳增强比约为25/75。该模型还与文献数据进行了比较,其中获得了良好的定性一致性作为第一近似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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