A comprehensive unit cell model: a study of coupled effects in piezoelectric 1–3 composites
A comprehensive unit cell model: a study of coupled effects in piezoelectric 1–3 composites
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DOI：
10.1016/s0020-7683(99)00224-3
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发表时间：
2000-09
影响因子：
3.6
通讯作者：
H. Pettermann;S. Suresh
中科院分区：
文献类型：
--
作者：
H. Pettermann;S. Suresh
本文建立了一种适用于任意加载条件的连续排列纤维周期性排列复合材料的有限元单胞模型。特别强调的是放置在制定的边界条件，以允许模拟的所有模式所产生的任何任意组合的机械和电气负载的整体变形。该模型适用于压电复合材料，从而全面的弹性，介电，以及压电模量被完全提取。边界条件进行了验证，弹性面内剪切载荷和检查求助于分析界的比较，以及半分析界和压电复合材料从文献的实验研究。讨论了纤维排列方式以及压电陶瓷与压电纤维增强聚合物基复合材料的区别。
A finite element unit cell model for investigation of arbitrary loading conditions is developed for composites with periodic arrangements of continuous aligned fibers. Special emphasis is placed on the formulation of the boundary conditions to allow for simulation of all modes of overall deformation arising from any arbitrary combination of mechanical and electrical loading. The model is applied to piezoelectric composites whereby the overall elastic, dielectric, as well as piezoelectric moduli are fully extracted. The boundary conditions are validated for elastic in-plane shear loading and checked by recourse to comparisons with analytical bounds as well as semianalytical bounds and experimental investigations for piezoelectric composites from the literature. Aspects of fiber arrangement and differences between piezoelectric ceramic as well as polymer matrix composites reinforced with piezoelectric fibers are discussed.