Microstructure and finite element analysis of 3D five-directional braided composites

被引：33
|
作者：
Li, Jin-Chao [1 ,2 ]
Chen, Li [1 ]
Zhang, Yi-Fun [1 ]
Pan, Ning [1 ,3 ]
机构：
[1] Tianjin Polytech Univ, Tianjin & Minist Educ, Key Lab Adv Text Composite Mat, Inst Text Composite, Tianjin, Peoples R China
[2] Henan Inst Engn, Dept Text Engn, Zhengzhou, Peoples R China
[3] Univ Calif Davis, Div Text & Clothing, Dept Biol & Agr Engn, Davis, CA 95616 USA
来源：
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES | 2012年 / 31卷 / 02期
基金：
中国国家自然科学基金;
关键词：
textile composites; mechanical properties; elastic properties; finite element analysis; MECHANICAL-PROPERTIES; PREDICTION;
D O I：
10.1177/0731684411429535
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Microstructure of 3D five-directional braided composites determines its mechanical properties. Microscopic evidence of the microstructure reveals that the cross-sections of the axial yarn are variable along its central axial due to the lateral compression from the adjacent braiding yarns. On the basis of microscopic observations, a dense but non-intersecting geometry internal unit cell model of 3D five-directional braided composites is established. By using the unti-cell model, a 3D mesomechanical FEA is proposed to predict the effective elastic properties of 3D five-directional braided composites. Compared with existing model, present model is more effective to calculate the mechanical properties of 3D five-directional braided composites with more than 50% fiber volume fraction.
引用
收藏
页码：107 / 115
页数：9
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