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A Novel Analytical Model For Predicting The Compression Modulus Of 2d Pwf Composites

机译：一种预测2d Pwf复合材料压缩模量的新型分析模型

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摘要

This paper seeks to address a novel model for predicting the compression modulus of a 2D plain weave fabric (PWF) composite accounting for the interaction of orthogonal interlacing strands. The two orthogonal yarns in a micromechanical unit cell are idealized as curved beams with a path depicted by using sinusoidal shape functions. The modulus is derived by means of a strain energy approach founded on micromechanics. In order to validate the model, experiments have been performed to investigate the mechanical properties of two-dimensional (2D) orthogonal EW220/5284 PWF composites fabricated by resin transfer moulding (RTM). In-plane tensile, compressive and shear moduli have been measured. It is shown that the experimental results correlate well with predictions from the new model.
机译：本文寻求解决一个新模型，该模型可预测二维正交编织织物（PWF）复合材料的压缩模量，该模型考虑了正交交织股线的相互作用。微机械单元中的两条正交纱线理想化为弯曲光束，其路径通过使用正弦形状函数来描绘。模量是通过基于微力学的应变能方法得出的。为了验证该模型，已进行实验以研究通过树脂传递模塑（RTM）制造的二维（2D）正交EW220 / 5284 PWF复合材料的机械性能。已经测量了平面内的拉伸，压缩和剪切模量。结果表明，实验结果与新模型的预测很好地相关。

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