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| Numerical simulation for high-speed impact problems by discrete element method |
| Received:December 18, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20094026 |
| KeyWord:DEM elastoplastic axi-symmetric impact failure |
| Author | Institution |
| 成名 |
北京大学 工学院 力学与空天技术系和湍流与复杂系统研究国家重点实验室, 北京 |
| 刘维甫 |
北京大学 工学院 力学与空天技术系和湍流与复杂系统研究国家重点实验室, 北京 |
| 刘凯欣 |
北京大学 工学院 力学与空天技术系和湍流与复杂系统研究国家重点实验室, 北京 |
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| Abstract: |
| A new discrete element method (DEM) model for elastoplastic axi-symmetric problems is established based on the principle of energy equivalence. By introducing a failure criterion, the DEM can be extended to model the transition from a continuum to a non-continuum. Moreover, an example of a steel plate impacted by a steel bullet with a high speed is given, which demonstrate the applicability and effectiveness of the DEM model. |