Comparison of analytical and finite element simulation of 2D braiding
Comparison of analytical and finite element simulation of 2D braiding
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DOI：
10.1179/146580109x12540995045769
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发表时间：
2009-12
期刊：
影响因子：
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通讯作者：
A. Pickett;Andreas Erber;T. Reden;Klaus Drechsler
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文献类型：
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作者：
A. Pickett;Andreas Erber;T. Reden;Klaus Drechsler
使用测试、分析和先进的显式有限元模拟方法对通用预制件进行二维编织。所选择的通用预成型件包含几个重要特征，包括两个圆柱形和一个方形截面、一个锥形锥体和两个不同的凸缘。该分析方法已被证明计算速度快，但精度有限，并且不能直接预测编织缺陷。相反，显式有限元方法确实需要复杂的模型描述，但能够检测制造缺陷并准确预测纱线路径和纱线相互作用。根据通用预成型件的测试结果对这两种方法进行了详细的评估和比较，通用预成型件是特意制造的，具有良好和不完美的纱线结构。
Two-dimensional braiding of a generic preform has been undertaken using test, analytical and advanced explicit finite element simulation methods. The generic preform selected incorporates several important features including two cylindrical and one square section, a tapered cone and two dissimilar flanges. The analytical method has been shown to be computationally fast, but has limited accuracy and cannot directly predict braiding imperfections. Conversely, the explicit finite element method does require a complex model description, but has the capability to detect manufacturing imperfections and accurately predict yarn paths and yarn interactions. A detailed evaluation and comparison of the two methods is made against test results from the generic preform, which was deliberately manufactured to have both good and imperfect yarn architecture.