| 高速冲击过程数值分析的再生核质点法 |
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| 引用本文： | 赵光明,宋顺成,杨显杰.高速冲击过程数值分析的再生核质点法[J].力学学报,2007,39(1):63-69. |
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| 作者姓名： | 赵光明 宋顺成 杨显杰 |
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| 作者单位： | 安徽淮南安徽理工大学资源开发与管理工程系办公室 西南交通大学 四川省成都市西南交通大学应用力学与工程系 |
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| 摘 要： | 利用新型的无网格方法-再生核质点方法对高速冲击过程进行数值模拟，给出了控制
方程，分析中引入Bordner-Partom本构模型来实现材料高速冲击条件下的大应变和高应变
率的特性，提出了新的接触面处理方法，介绍了速度配点法来实现接触面及其它本质边界的
速度条件. 数值模拟表明，再生核质点法能够准确模拟高速冲击过程，具有较高的计算精度.
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| 关 键 词： | 无网格法 再生核质点法 高速冲击 速度配点法 接触 |
| 文章编号： | 0459-1879（2007）01-0063-07 |
| 收稿时间： | 2005-08-22 |
| 修稿时间： | 2006-03-14 |
THE REPRODUCING KERNEL PARTICLE METHOD FOR NUMERICAL ANALYSIS OF HIGH-SPEED IMPACT PROCESS |
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| Zhao Guangming,Song Shuncheng,Yang Xianjie.THE REPRODUCING KERNEL PARTICLE METHOD FOR NUMERICAL ANALYSIS OF HIGH-SPEED IMPACT PROCESS[J].chinese journal of theoretical and applied mechanics,2007,39(1):63-69. |
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| Authors: | Zhao Guangming Song Shuncheng Yang Xianjie |
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| Institution: | 1.Dept. of Resource Exploration and Management Engineering, Anhui University of Science and Technology, Huainan 231001, China; 2.Dept. of Applied Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The Reproducing Kernel Particle Method, a new type of meshless method, is adopted in this study, for numerical simulations of high-speed impact processes. The related control equations are obtained and the Bordner-Partom constitutive model is used for large strain and high strain-rate when the material is under a high-speed impact. A new method is proposed for the treatment of interfaces, and the Velocity Collocation Method(VCM) is used to meet the speed requirement of the interface and its boundary. Numerical simulations show that the Reproducing Kernel Particle Method can correctly simulate the high-speed impact process with velatively high degree of accuracy. |
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| Keywords: | meshless method RKPM high-speed impact velocity collocation method contact |
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