| 纳米碳管增强镁基复合材料应力传递有限元分析 |
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| 引用本文： | 李四年,肖岸纯,陈慧敏,张友寿,沈金龙,郑重.纳米碳管增强镁基复合材料应力传递有限元分析[J].特种铸造及有色合金,2010,30(3). |
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| 作者姓名： | 李四年 肖岸纯 陈慧敏 张友寿 沈金龙 郑重 |
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| 作者单位： | 湖北工业大学理学院 |
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| 基金项目： | 武汉市晨光计划资助项目，湖北省自然科学基金资助项目 |
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| 摘 要： | 结合有限元的分析方法,建立了一个简化模型来模拟纳米碳管增强镁基复合材料在拉伸试验过程中的变形,研究了基体、增强体的应变和应力分布,以及界面对复合材料力学行为的影响,探讨了纳米碳管增强体与基体间的应力传递机制和断裂机理。模拟结果表明,纳米碳管整体上受力比较均匀,在轴向上的界面处出现应力集中;基体与纳米碳管在两端面的接触部位出现明显的应力集中,应力分布呈火焰状,中心大,逐渐向外围减小,在基体的其余部位应力大小则是相对均匀的,这说明复合材料的破坏是从界面处开始的,其破坏机制是界面脱开。
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| 关 键 词： | 纳米碳管 镁基复合材料 有限元 |
Analysis and Calculation of Residual Stress in Carbon Nanotubes Reinforced Mg Matrix Composites |
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| Li Simian,Xiao Anchun,Chen Huimin,Zhang Youshou,Shen Jinlong,Zheng Zhong.Analysis and Calculation of Residual Stress in Carbon Nanotubes Reinforced Mg Matrix Composites[J].Special Casting & Nonferrous Alloys,2010,30(3). |
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| Authors: | Li Simian Xiao Anchun Chen Huimin Zhang Youshou Shen Jinlong Zheng Zhong |
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| Affiliation: | Li Simian,Xiao Anchun,Chen Huimin,Zhang Youshou,Shen Jinlong,Zheng Zhong(Physical School,Hubei University of Technology,Wuhan,China) |
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| Abstract: | Deformation behavior of carbon nano-tubes reinforced magnesium matrix composites was simulated by a simplified model based on the FEM(finite element method)to understand the strain and stress distribution in the matrix and reinforcement as well as effects of interface on mechanical properties of the composites,and stress transferring and fracture mechanism of carbon nao-tubes with the magnesium matrix alloy were expounded.The results reveal that the whole carbon nano-tube exhibits homogeneous stress distrib... |
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| Keywords: | Carbon Nano-tubes Magnesium Matrix Composites Finite Element Method |
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