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Multi-scale modelling of the damage behavior for 3D woven composites with variant structure
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-06-21 , DOI: 10.1177/15280837211023811
Hua Zhong 1, 2 , Shuzi Yang 1
Affiliation  

In the process of fabricating a three-dimensional (3 D) woven perform, the variant structures introduced during adding and reducing tows, lead to changes of local tow orientation and woven pattern, which affects the mechanical response of 3 D woven composite. In this study, specimens with variant structure were manufactured by adding and reducing tow techniques, and representative unit cells of normal and variant structure were established by topological method. A multi-scale damage model was proposed to analyze the damage behaviors and predict the strength of 3 D woven composites with the user subroutine UMAT of ABAQUS/Standard. The results show that the variation of tensile modulus and strength between the experimental and simulation value were less than 4%. In addition, it is proved that the damage propagation of the macro-scale model with variant structure can be successfully captured.



中文翻译:

具有不同结构的 3D 编织复合材料损伤行为的多尺度建模

在制造三维 (3D) 编织预制件的过程中,添加和减少丝束过程中引入的变异结构会导致局部丝束方向和编织图案的变化,从而影响 3D 编织复合材料的机械响应。本研究采用加减拖曳技术制备具有变异结构的试样,并通过拓扑方法建立正常结构和变异结构的代表性晶胞。利用ABAQUS/Standard的用户子程序UMAT,提出了一种多尺度损伤模型来分析损伤行为并预测3D编织复合材料的强度。结果表明,拉伸模量和强度在实验值和模拟值之间的变化均小于4%。此外,

更新日期:2021-06-22
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