| 直锥变截面Hopkinson压杆实验的数值模拟 |
| |
| 引用本文： | 董钢,巫绪涛,杨伯源,李和平.直锥变截面Hopkinson压杆实验的数值模拟[J].合肥工业大学学报(自然科学版),2005,28(7):795-798. |
| |
| 作者姓名： | 董钢 巫绪涛 杨伯源 李和平 |
| |
| 作者单位： | 1. 合肥工业大学,土木建筑工程学院,安徽,合肥,230009
2. 合肥工业大学,土木建筑工程学院,安徽,合肥,230009;中国科学技术大学材料力学行为和设计重点实验室,安徽,合肥,230027 |
| |
| 基金项目： | 合肥工业大学科学发展基金资助项目(030901F) |
| |
| 摘 要： | 随着分离式Hopkinson压杆(简称SHPB)实验技术应用领域的拓宽,对SHPB实验设备和实验精度的要求日益提高,改进和优化SHPB实验技术就显得尤为迫切。数值模拟在这方面发挥着重要的作用。文章利用商用程序ANSYS/LS-DYNA对不同长度的子弹与74mm直锥变截面压杆撞击进行了三维数值模拟,将模拟结果与实验结果进行了比较;同时分析了不同长度的应力波在74mm直锥变截面压中的传播特性。
|
| 关 键 词： | SHPB实验技术 数值模拟 波形弥散 |
| 文章编号： | 1003-5060(2005)07-0795-04 |
| 修稿时间： | 2004年10月26 |
Numerical simulation of the conic variable cross-sectional SHPB |
| |
| Dong Gang,WU Xu-tao,YANG Bo-yuan,LI He-ping.Numerical simulation of the conic variable cross-sectional SHPB[J].Journal of Hefei University of Technology(Natural Science),2005,28(7):795-798. |
| |
| Authors: | Dong Gang WU Xu-tao YANG Bo-yuan LI He-ping |
| |
| Institution: | DONG Gang~1,WU Xu-tao~~ |
| |
| Abstract: | With the widening of the application field of the Split Hopkinson pressure bar(SHPB) experimental technique,there is the demand for better experimental equipment and higher experimental accuracy,so it is urgent to improve and optimize the SHPB experimental technique,and numerical simulation is an important way.With the help of the software ANSYS/LS-DYNA,this paper presents the three-dimensional numerical simulation of the impact between the bullets with different lengths and the 74 mm conic variable cross-sectional pressure bar,and the simulation result is compared with the result of the experiment.The transmitting characteristic of the stress wave with different lengths in the pressure bar is also analyzed. |
| |
| Keywords: | Split Hopkinson pressure bar(SHPB) technique numerical simulation stress wave dispersion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
