| 陶瓷基复合材料界面结合强影响断裂过程的有限元研究 |
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| 引用本文： | 李旭东,张跃,张凡伟,张大海,李仲平.陶瓷基复合材料界面结合强影响断裂过程的有限元研究[J].复合材料学报,2009,26(5):132-136. |
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| 作者姓名： | 李旭东 张跃 张凡伟 张大海 李仲平 |
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| 作者单位： | 1. 北京航空航天大学,材料科学与工程学院,空天材料与服役教育部重点实验室,北京,100191
2. 航天材料及工艺研究所,先进功能复合材料技术国防科技重点实验室,北京,100073 |
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| 摘 要： | 提出了纤维增强复合材料断裂有限元模型，该模型既用弹簧单元考虑了基体与纤维之间的分离，又用接触单元考虑了基体与纤维之间的摩擦，较真实地模拟了纤维增强复合材料的断裂过程。通过有限元计算，预测了基体与纤维之间的界面结合强度对整个复合材料断裂模式的影响。还对强弱两种不同基体弹性模量的材料进行进一步的探讨。对比其他文献 , 本文中预测结果与真实情况较为吻合。结果表明，对于纤维增强复合材料，不论是强基体还是弱基体，适中的界面结合强度有助于提高其韧性及整体抗拉强度。
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| 关 键 词： | 复合材料 界面结合强度 断裂模式 有限元法 |
| 收稿时间： | 2008-09-23 |
| 修稿时间： | 2009-02-17 |
Finite element research on the effect of interfacial bond strength on fracturing process of ceramic matrix composites |
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| LI Xudong,ZHANG Yue,ZHANG Fanwei,ZHANG Dahai,LI Zhongping.Finite element research on the effect of interfacial bond strength on fracturing process of ceramic matrix composites[J].Acta Materiae Compositae Sinica,2009,26(5):132-136. |
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| Authors: | LI Xudong ZHANG Yue ZHANG Fanwei ZHANG Dahai LI Zhongping |
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| Affiliation: | (1. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;2. National Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials and Processing Technology, Beijing 100073, China) |
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| Abstract: | The finite element method was employed to simulate the crack growth behavior of ceramics matrix composites.The model used the combined elements for simulating the separation between matrix and fiber and the contact elements for simulating the friction between matrix and fiber,considering interfacial bond strength on the basis of the fracture model of fiber reinforced composites.It predicted that the interfacial bond strength between matrix and fiber affects the fracturing process through FEM calculation and... |
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| Keywords: | composites interfacial bond strength fracture scheme finite element method |
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