| 基于ANSYS/LS-DYNA的受控喷丸工艺过程仿真 |
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| 引用本文： | 路会龙,姚平喜,刘海英.基于ANSYS/LS-DYNA的受控喷丸工艺过程仿真[J].机械设计与制造,2009(2). |
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| 作者姓名： | 路会龙 姚平喜 刘海英 |
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| 作者单位： | 太原理工大学,机械工程学院,太原,030024 |
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| 摘 要： | 将喷丸过程简化为丸粒撞击工件的模型,丸粒看作刚性体,运用ANSYS/LS-DYNA软件进行了数值模拟,分析了覆盖率对残余压应力分布的影响,得出在不完整喷丸覆盖率下工件表面会产生残余拉应力.在单个丸粒模型中,将丸粒的材料改为塑性硬化材料,分析丸粒的速度对残余压应力分布的影响,得出丸粒的材料参数一定时,存在最优喷丸速度,丸速过高会导致丸粒的变形能增加,而使工件表层的最大压应力值和应力层深度下降.
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| 关 键 词： | 残余应力 覆盖率 Cowper-Symonds材料模型 有限元仿真 |
Simulation of controlled shot peening process based on ANSYS/LS-DYNA |
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| LU Hui-long,YAO Ping-xi,LIU Hai-ying.Simulation of controlled shot peening process based on ANSYS/LS-DYNA[J].Machinery Design & Manufacture,2009(2). |
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| Authors: | LU Hui-long YAO Ping-xi LIU Hai-ying |
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| Affiliation: | College of Mechanical Engineering;Taiyuan University of Technology;Taiyuan 030024;China |
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| Abstract: | The shot-peening process is simplified shot projected on a workpiece,and is simulated based on ANASYS/LS-DYNA software.The influence of coverage rate on residual stress distribution is analyzed.The results show that the uncompleted coverage will lead to tension residual stress.Change shot material as plastic hardening material in single shot model,the results show the optimum shot velocity exist when the shot material parameter is fixed,the excessive velocity will increase the shot distortion energy,and red... |
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| Keywords: | Residual stress Coverage rate Cowper-symonds material model FEM simulation |
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