Abstract Three dimensional (3D) textiles are finding their way into fibre reinforced composite applications, and for good reasons; they can eliminate the hazard of delamination and enable complex reinforcement shapes. There is therefore a need for engineering methods to simulate these advanced textile structures during the product development phase. This is many times challenging since the textile architecture is truly 3D and not built by layers as in conventional laminated composites. The overall approach is similar as in a method previously presented by the authors, but some steps are changed that enable modelling of textiles containing strongly curved yarns, yet with very good geometric representation. That is essential for reliable simulations of all parts of the 3D reinforced composite materials, which could then be performed at close to authentic meso level resolution. The resulting textile geometries are very similar to the real materials they represent, both in terms of variation of yarn cross section area and shape along the length of the yarns. This is demonstrated by comparison of details between the real materials and the numerical implementations of their geometry.

中文翻译：

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纺织建筑几何建模的扩展框架

摘要 三维 (3D) 纺织品正在寻找进入纤维增强复合材料应用的途径，这是有充分理由的。它们可以消除分层的危险并使复杂的钢筋形状成为可能。因此，在产品开发阶段需要工程方法来模拟这些先进的纺织品结构。由于纺织结构是真正的 3D 结构，而不是像传统的层压复合材料那样由层构成，因此这多次具有挑战性。整体方法与作者先前提出的方法相似，但更改了一些步骤，以便对包含强烈弯曲纱线的纺织品进行建模，但具有非常好的几何表示。这对于 3D 增强复合材料的所有部分的可靠模拟至关重要，然后可以在接近真实的中级分辨率下执行。由此产生的纺织品几何形状与它们所代表的真实材料非常相似，无论是纱线横截面积的变化还是沿着纱线长度的形状。这是通过比较真实材料与其几何的数值实现之间的细节来证明的。