Fatigue damage analysis of 2D braided C/SiC composite plate

被引：0
|
作者：
Chen T. [1 ]
Zhang Z. [1 ]
Wang Q. [1 ]
Lin H. [1 ]
机构：
[1] School of Aeronautic Science and Engineering, Beihang University, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2019年 / 45卷 / 01期
关键词：
2D braided; Anisotropy; Composite; Damage; Finite element;
D O I：
10.13700/j.bh.1001-5965.2018.0194
中图分类号：
学科分类号：
摘要：
To explore the basic laws of composite damage, first, based on damage mechanics, combined with Tsai-Hill criterion of strength, a damage evolution equation that can characterize the damage anisotropy of 2D braided C/SiC composites was proposed.Second, a damage simulation program considered material stiffness reduction depend on the damage degree, as an add-on function, was developed and inserted in the commercial finite element software ANSYS environment. Third, the damage evolution of the 2D braided C/SiC composite plate model was simulated, and the result shows stress and damage degree have coupling effects on the element damage during the damage process. Finally, the form of damage evolution equation is discussed and improved, and the anisotropic characteristics of damage evolution under the material property and the action of damage driving force is revealed by analog computation, indicating that the material anisotropy damage is the inevitable result of its material properties and loaded form. © 2019, Editorial Board of JBUAA. All right reserved.
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页码：192 / 199
页数：7
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