| 激光冲击SiCp/Cu复合材料的有限元模拟 |
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| 引用本文： | 张洁,孙爱华,祝乐,顾祥,戈晓岚. 激光冲击SiCp/Cu复合材料的有限元模拟[J]. 稀有金属材料与工程, 2010, 39(Z1) |
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| 作者姓名： | 张洁 孙爱华 祝乐 顾祥 戈晓岚 |
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| 作者单位： | 江苏大学,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金，江苏省高技术研究计划项目 |
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| 摘 要： | 为了探究激光冲击强化对SiCp/Cu复合材料力学性能的影响,采用有限元分析软件ANSYS/LS-DYNA对复合材料单胞模型进行冲击加载,模拟结果显示:在基体金属上存在着广泛的压应力,并且在载荷作用过程中导致了基体的屈服强化,大大提高了基体的强度;在基体与颗粒增强体之间的界面上存在着一定的等效应力值。采用WDW-200微机控制式电子万能试验机对激光冲击强化前后的试样进行拉伸性能对比试验:发现冲击后试样的抗拉强度较未冲击试样的提高了18MPa,且断口呈现韧窝形貌,为微孔聚集形韧性断裂。结果表明:激光冲击强化提高了SiCp/Cu复合材料的力学性能。
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| 关 键 词： | 激光冲击强化 SiCp/Cu复合材料 有限元模拟 残余应力 |
Finite Element Simulation of Laser Shock Processing SiCp/Cu Matrix Composites |
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| Zhang Jie,Sun Aihua,Zhu Le,Gu Xiang,Ge Xiaolan. Finite Element Simulation of Laser Shock Processing SiCp/Cu Matrix Composites[J]. Rare Metal Materials and Engineering, 2010, 39(Z1) |
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| Authors: | Zhang Jie Sun Aihua Zhu Le Gu Xiang Ge Xiaolan |
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| Affiliation: | Zhang Jie,Sun Aihua,Zhu Le,Gu Xiang,Ge Xiaolan (Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | In order to study the effect of laser shock processing on the mechanical properties of SiCp/Cu composites,a finite element software ANSYS/LS-DYNA was used to simulate the laser peening of unit cell model for the composites.Results show that there is extensive compressive stress in the matrix which results in the yield hardening of the matrix during loading process,and therefore the matrix strength is improved greatly.There is also equivalent stress in the interface between the matrix and particle reinforcem... |
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| Keywords: | laser shock processing SiCp/Cu matrix composites finite element simulate residual stress |
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