Numerical simulation of 3D angle-interlock woven fabric forming and compression processes

IF 2.6 3区材料科学 Q2 ENGINEERING, MANUFACTURING International Journal of Material Forming Pub Date : 2024-03-27 DOI:10.1007/s12289-024-01824-0

Yongqiang Liu, Zhongxiang Pan, Jiajia Yu, Xiaoyu Hong, Zhiping Ying, Zhenyu Wu

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Abstract

This paper provides a modeling method for predicting the internal structure of three-dimensional (3D) angle-interlock woven fabric. Inspired by the digital element method, the numerical model of micro-scale was established by using truss element. The numerical model was compared with the Computed Tomography (CT) cross-sectional scan of the actual fabric sample, and the results were consistent. The mechanical properties of the 3D angle-interlock woven fabric is closely related to the fabric’s structure. Therefore, by changing the tension at both ends of the yarn tows to explore the influence on the yarn tows’ geometry, it was found that different tensions affects the cross-sectional areas and crimp angles of the yarn tows. On the basis of fabric forming, multi-shape molds were designed to press the fabric into different shapes, which were semi-hexagonal, arc-shaped and L-shaped. The results of numerical simulation showed that the fabric will undergo inter-layer slip when compressed, especially in the region where the mold deformation is large.

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三维角交错编织物成型和压缩过程的数值模拟

本文提供了一种预测三维（3D）角交织织物内部结构的建模方法。受数字元素法的启发，利用桁架元素建立了微尺度的数值模型。数值模型与实际织物样品的计算机断层扫描（CT）截面扫描结果进行了比较，结果一致。三维角交错编织物的力学性能与织物的结构密切相关。因此，通过改变纱线束两端的张力来探索对纱线束几何形状的影响，发现不同的张力会影响纱线束的横截面积和卷边角。在织物成型的基础上，设计了多形状模具，将织物压制成不同形状，分别为半六角形、弧形和 L 形。数值模拟结果表明，织物在压缩时会发生层间滑移，尤其是在模具变形较大的区域。

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来源期刊

International Journal of Material Forming ENGINEERING, MANUFACTURING-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.10

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal publishes and disseminates original research in the field of material forming. The research should constitute major achievements in the understanding, modeling or simulation of material forming processes. In this respect ‘forming’ implies a deliberate deformation of material. The journal establishes a platform of communication between engineers and scientists, covering all forming processes, including sheet forming, bulk forming, powder forming, forming in near-melt conditions (injection moulding, thixoforming, film blowing etc.), micro-forming, hydro-forming, thermo-forming, incremental forming etc. Other manufacturing technologies like machining and cutting can be included if the focus of the work is on plastic deformations. All materials (metals, ceramics, polymers, composites, glass, wood, fibre reinforced materials, materials in food processing, biomaterials, nano-materials, shape memory alloys etc.) and approaches (micro-macro modelling, thermo-mechanical modelling, numerical simulation including new and advanced numerical strategies, experimental analysis, inverse analysis, model identification, optimization, design and control of forming tools and machines, wear and friction, mechanical behavior and formability of materials etc.) are concerned.