| 爆炸荷载下金属结构损伤的数值模拟 |
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| 作者单位： | 北京工业大学机械工程与应用电子学院，中国运载火箭技术研究院 北京100076，北京工业大学机械工程与应用电子学院，北京工业大学机械工程与应用电子学院，北京工业大学机械工程与应用电子学院，北京100022，北京100022，北京100022，北京100022 |
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| 摘 要： | 模拟了炸药爆炸对金属结构的破坏,以LS-DYNA为仿真平台,分析了所应用的材料模型,比较了不同单元网格密度对计算结果的影响．对于平面应变问题,比较了采用二维和三维模型时在算法方面的区别,并对它们计算的结果进行了对比．与实测结果对比表明,用LS-DYNA可以有效模拟金属结构在爆炸荷载作用下的冲击响应．
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| 关 键 词： | 金属结构 爆炸荷载 数值模拟 |
Numerical Simulation on Metal Structure Damage Under Explosion Load |
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| YANG Zhi-guang,ZHANG Yue-bing,SUI Yun-kang,CHEN Min. Numerical Simulation on Metal Structure Damage Under Explosion Load[J]. Journal of Beijing Polytechnic University, 2006, 0(Z1) |
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| Authors: | YANG Zhi-guang ZHANG Yue-bing SUI Yun-kang CHEN Min |
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| Abstract: | The metal structure damage under explosion of detonator is simulated by LS-DYNA. The material model applied is analyzed in detail. The difference between Euler and Lagrange algorithm is described. The influences of different meshing density on the precision of results are compared. In the plain strain problems, both two-dimensional and three-dimensional models are applicable, and their calculation results are compared. The comparison with the experimental results shows that the LS-DYNA can simulate the impact reaction of metal structure under explosion load effectively. |
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| Keywords: | metal structure explosion load numerical simulation |
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