| 侧向载荷下圆柱壳体断裂的ALE法数值模拟 |
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| 引用本文： | 陈敏,隋允康,阳志光.侧向载荷下圆柱壳体断裂的ALE法数值模拟[J].北京工业大学学报,2006(Z1). |
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| 作者姓名： | 陈敏 隋允康 阳志光 |
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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 北京100022(陈敏，隋允康)，北京宇航系统工程研究所 北京100076(阳志光) |
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| 基金项目： | 国家自然科学基金资助项目(10472003)，北京市自然科学基金资助项目(3042002) |
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| 摘 要： | 为了了解侧向爆炸冲击载荷下圆柱壳体断裂过程,采用任意拉格郎日-欧拉方法、爆轰产物采用JWL状态方程对侧向爆炸冲击载荷作用下圆柱壳体断裂过程进行了数值模拟和分析．模拟结果表明,圆柱壳体爆炸断裂所需炸药量与壳体壁厚为递增线性关系,且这个线性关系的斜率随壁厚不同而改变．在其他条件相同的情况下,壳壁越厚,增加炸药量爆炸时壳体单元最大应力增加越慢．
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| 关 键 词： | 任意拉格朗日-欧拉法 数值模拟 爆炸 圆柱壳体 |
ALE Numerical Simulation of Dynamic Fracture of Cylindrical Shell Under Lateral Impulsion |
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| CHEN Min,SUI Yun-kang,YANG Zhi-guang.ALE Numerical Simulation of Dynamic Fracture of Cylindrical Shell Under Lateral Impulsion[J].Journal of Beijing Polytechnic University,2006(Z1). |
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| Authors: | CHEN Min SUI Yun-kang YANG Zhi-guang |
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| Abstract: | In order to research the fracture behavior, the numerical simulation of dynamic fracture of cylindrical shell under lateral explosion impulsion was successfully realized with arbitrary Lagrangian-Eulerian method. The result is that explosive mass is incremental linear relation to wall thickness of shell, and the slope coefficient is changed by different wall thickness. With the same condition, the element maximum stress increase showly to more wall thickness when explosive mass is increased. |
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| Keywords: | arbitrary Lagrangian-Eulerian method numerical simulation explosion cylindrical shell |
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