Prediction of Elastic Constants on 3D Four-directional Braided Composites

被引：0
|
作者：
Zhou, Liang Dao [1 ,2 ]
Zhuang, Zhuo [1 ]
机构：
[1] Tsinghua Univ, Sch Aerosp, Beijing 100084, Peoples R China
[2] Shanghai Aircraft Design & Res Inst, Shanghai 200232, Peoples R China
来源：
POLYMERS & POLYMER COMPOSITES | 2014年 / 22卷 / 09期
关键词：
3D four-directional braided composite; Prestressed cell; Finite element model; Mechanical properties; Damage constitutive; STRUCTURAL COMPOSITES; MECHANICAL-PROPERTIES; MODEL;
D O I：
10.1177/096739111402200909
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, a finite element model with a prestressed unit cell is proposed to predict the elastic constants of 3D four-directional braided composites. Firstly, a finite element unit cell model with damage constitutive for 3D four-directional braided composites is established to investigate the influence of the prestresses in the unit cell. Secondly, the elastic constants of 3D four-directional braided composites are predicted with and without the prestresses in the unit cell. Finally, the influences of the braided direction and fibre content on the elastic constants of 3D four-directional braided composites are discussed. The results will provide an important guidance for designing and evaluating the mechanical properties of 3D four-directional braided composites.
引用
收藏
页码：817 / 823
页数：7
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