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Finite Element Analysis of Plain Weave Composites for Flexural Failure

机译:平纹复合材料弯曲破坏的有限元分析

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摘要

This article presents finite element analysis for flexural behavior of woven composites considering the fiber and the matrix and their interactions. Finite element model using Abaqus program is developed to predict the homogenized properties of plain-weave T300/ LTM45 composite. Initially, curved beam elements are used to model each resin-infiltrated fiber bundle. Geometrically, nonlinear analyses of the model with periodic boundary conditions are carried out to obtain effective in-plane and bending properties of the composite. Statistical analysis is presented to study the stiffness variability. The flexural failure of a single-ply composite is estimated based on the homogenized material properties, and is compared with previously published data. The model is able to correct the significant errors in the stiffnesses of the composite and captures the failure behavior accurately.
机译:本文介绍了考虑纤维和基体及其相互作用的机织复合材料弯曲行为的有限元分析。开发了使用Abaqus程序的有限元模型,以预测平纹T300 / LTM45复合材料的均质性能。最初,弯曲梁单元用于模拟每个树脂渗透的纤维束。在几何上,对具有周期性边界条件的模型进行非线性分析,以获得复合材料的有效面内和弯曲特性。进行统计分析以研究刚度变异性。单层复合材料的弯曲破坏是基于均质化的材料特性估算的,并与先前发布的数据进行比较。该模型能够纠正复合材料刚度中的重大误差,并准确地捕获破坏行为。

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