Effects of Fiber Arrangement on Negative Poisson's Ratio of Angle-Ply CFRP Laminates: Analysis Based on a Homogenization Theory
Effects of Fiber Arrangement on Negative Poisson's Ratio of Angle-Ply CFRP Laminates: Analysis Based on a Homogenization Theory
复制标题
纤维排列对角铺CFRP层合板负泊松比的影响：基于均质化理论的分析
DOI：
10.1007/978-3-319-19440-0_10
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
N. Ohno
中科院分区：
文献类型：
--
作者：
T. Matsuda;K. Goto;N. Ohno
基于均匀化理论，研究了纤维排布方式对碳纤维增强塑料（CFRP）角铺设层合板负泊松比的影响。首先，角铺设CFRP层合板的三维建模与碳纤维分布在一个六边形排列的层。然后，将非线性时变复合材料的均匀化理论应用于层合板。用本文方法分析了碳纤维/环氧树脂角铺设层合板的弹粘塑性泊松比。分析结果进行了比较与以前的研究，其中一个正方形的纤维排列在每个层假设。结果表明，纤维排列影响负的通过厚度的泊松比的层合板在弹性和粘塑性区域，虽然他们有很小的影响的宏观应力-应变关系的层合板。
The effects of fiber arrangement on the negative through-the-thickness Poisson’s ratios of angle-ply carbon fiber-reinforced plastic (CFRP) laminates are investigated based on a homogenization theory. First, angle-ply CFRP laminates are modeled three-dimensionally with- and-laminae in which carbon fibers are distributed in a hexagonal arrangement. Then, a homogenization theory for nonlinear time-dependent composites is applied to the laminates. Using the present method, the elastic-viscoplastic Poisson’s ratios of angle-ply carbon fiber/epoxy laminates are analyzed. The analysis results are then compared with those of the previous study, in which a square fiber arrangement in each lamina was assumed. It is shown that the fiber arrangement affects the negative through-the-thickness Poisson’s ratios of the laminates in both elastic and viscoplastic regions, though they have little effect on the macroscopic stress-strain relationships of the laminates.