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An algorithm for the generation of three-dimensional statistically Representative Volume Elements of unidirectional fibre-reinforced plastics: Focusing on the fibres waviness

机译:一种用于生成单向纤维增强塑料的三维统计上具有代表性的体积元素的算法:关注纤维波纹度

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摘要

An algorithm for the generation of periodic three-dimensional statistically Representative Volume Elements (RVEs) of unidirectional (UD) fibre-reinforced plastics (FRPs) is reported. Fibres are modelled as Bezier curves, which control points are moved in a semi-random fashion, in order to introduce waviness along the fibres. Spatial descriptors, able to statistically characterise the fibre waviness, are proposed, and their probability distributions are optimized for possible matching with experimental measurements. The developed procedure is able to generate the fibre geometry in an effective and fast way. This represents the first step in the generation of high-fidelity micromechanical models for UD FRPs.
机译:报告了一种用于生成单向(UD)纤维增强塑料(FRP)的周期性三维统计代表性体积元素(RVE)的算法。纤维被建模为贝塞尔曲线,控制点以半随机方式移动,以沿纤维引入波纹。提出了能够统计地表征纤维波纹度的空间描述符,并对其概率分布进行了优化,以便与实验测量值进行可能的匹配。开发的程序能够以有效而快速的方式生成光纤的几何形状。这代表了用于UD FRP的高保真微机械模型生成的第一步。

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