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Multiscale finite element modeling of failure process of composite laminates

机译:复合材料层合板破坏过程的多尺度有限元建模

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摘要

A multiscale nonlinear finite element modeling technique is developed in this paper to predict the progressive failure process for composite laminates. A micromechanical elastic-plastic bridging constitutive model, which considers the nonlinear material properties of the constituent fiber and matrix materials and their interaction and the damage and failure in fibrous composites at the fiber and matrix level, is proposed to represent the material behavior of fiber-reinforced composite laminates. The micromechan-ics constitutive model is employed in the macroscale finite element analysis of structural behavior especially progressive failure process of the fiber-reinforced composites based on a 4-node 24-DOF shear-locking free rectangular composite plate element.
机译:本文开发了一种多尺度非线性有限元建模技术,以预测复合材料层板的渐进破坏过程。提出了一种微机械弹塑性桥接本构模型,该模型考虑了组成纤维和基体材料的非线性材料特性,以及它们在纤维和基体水平上的相互作用以及纤维复合材料的破坏和破坏,以表示纤维-增强复合材料层压板。该微力学本构模型用于结构行为的宏观有限元分析,尤其是基于四节点,24自由度剪切锁定自由矩形复合板单元的纤维增强复合材料的渐进破坏过程。

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