| 基于扩展有限元法的颗粒增强复合材料静态及动态断裂行为研究 |
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| 引用本文： | 王志勇,马力,吴林志,于红军.基于扩展有限元法的颗粒增强复合材料静态及动态断裂行为研究[J].固体力学学报,2011,32(6):566-573. |
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| 作者姓名： | 王志勇 马力 吴林志 于红军 |
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| 作者单位： | 1. 哈尔滨工业大学复合材料与结构研究所2. |
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| 基金项目： | 新世纪优秀人才支持计划，哈尔滨工业大学优秀团队支持计划资助 |
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| 摘 要： | 运用不含裂尖增强函数的扩展有限元法,分别研究了静态及动态载荷作用下颗粒增强复合材料的断裂行为.假定基体和颗粒都为线弹性材料并且绑定完好,研究了不同颗粒位置、数量对基体裂纹尖端断裂参数的影响.数值模拟结果清晰地显示了含刚性颗粒和柔性颗粒时不同的失效机制.结果同时证明论文采用的数值方法能够准确预报颗粒增强复合材料的断裂行为...
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| 关 键 词： | 颗粒增强复合材料 断裂 扩展有限元法 |
| 收稿时间： | 2010-12-29 |
INVESTIGATION OF STATIC AND DYNAMIC FRACTURE BEHAVIOR OF PARTICLE-REINFORCED COMPOSITE MATERIALS BY THE EXTENDED FINITE ELEMENT METHOD |
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| Zhiyong Wang,Li Ma,Linzhi Wu,Hongjun Yu.INVESTIGATION OF STATIC AND DYNAMIC FRACTURE BEHAVIOR OF PARTICLE-REINFORCED COMPOSITE MATERIALS BY THE EXTENDED FINITE ELEMENT METHOD[J].Acta Mechnica Solida Sinica,2011,32(6):566-573. |
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| Authors: | Zhiyong Wang Li Ma Linzhi Wu Hongjun Yu |
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| Abstract: | The static and dynamic fracture behavior of particle-reinforced composite materials are investigated by the extended finite element method (XFEM) without tip-enriched functions. We assume that both the matrix and the particles, bounded by perfect interfaces, have the elastic properties. The influence of particle position and particle amount on the stress intensity factors (SIFs) of the matrix-crack-tip are studied. The numerical results clearly show the different failure mechanism in such materials. The results also validate that the method employed in this paper could accurately predict the fracture behavior of particle-reinforced composite materials and could be more easily accepted by the engineering. |
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