| Numerical Simulation and Dynamic Fracture Criteria of Thin Cylindrical Shells under Inner Explosive Loading |
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| 引用本文： | 高重阳,施惠基,姚振汉,王晓华,白春华. Numerical Simulation and Dynamic Fracture Criteria of Thin Cylindrical Shells under Inner Explosive Loading[J]. 清华大学学报, 2000, 5(1) |
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| 作者姓名： | 高重阳 施惠基 姚振汉 王晓华 白春华 |
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| 作者单位： | GAO Chongyang (高重阳)，SHI Huiji (施惠基)，YAO Zhenhan (姚振汉)，WANG Xiaohua (王晓华) ，BAI Chunhua (白春华) Department of Engineering Mechanics，Tsinghua University，Beijing 100084，China; Department of Mechanical Engineering，Beijing Institute |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＳｉｎｃｅｔｈｅ1940ｓ,ｍａｎｙｒｅｓｅａｒｃｈｅｒｓｈａｖｅｓｔｕｄｉｅｄｔｈｅｂｌａｓｔｉｎｇｆｒａｃｔｕｒｅｏｆｍｅｔａｌｃｙｌｉｎｄｒｉｃａｌｓｈｅｌｌｓｓｕｂｊｅｃｔｔｏｔｒａｎｓｉｅｎｔｌｏａｄｓｉｎａｗｉｄｅｒａｎｇｅｏｆｅｎｇｉｎｅｅｒｉｎｇａｐｐｌｉｃａｔｉｏｎｓ.Ｔｈｅｏｒｅｔｉｃａｌａｎｄｅｘｐｅｒｉｍｅｎｔａｌｍｏｄｅｌｓｈａｖｅｂｅｅｎｄｅｖｅｌｏｐｅｄｔｏｄｅｓｃｒｉｂｅｔｈｅｆｒａｃｔｕｒｅｍｅｃｈａｎｉｓｍａｎｄｒｕｐｔｕｒｅｃｏｎｄｉｔｉｏ…
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| 关 键 词： | numerical simulation cylindrical shells dynamic fracture criteria explosive loading damage |
Numerical Simulation and Dynamic Fracture Criteria of Thin Cylindrical Shells under Inner Explosive Loading |
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| GAO Chongyang,SHI Huiji,YAO Zhenhan,WANG Xiaohua,BAI Chunhua. Numerical Simulation and Dynamic Fracture Criteria of Thin Cylindrical Shells under Inner Explosive Loading[J]. Tsinghua Science and Technology, 2000, 5(1) |
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| Authors: | GAO Chongyang SHI Huiji YAO Zhenhan WANG Xiaohua BAI Chunhua |
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| Abstract: | An FAE (Fuel-Air-Explosives) device is used to develop a numerical and theoretical analysis of a thin cylindrical shell with inner explosive loading. The dynamic fracture process is simulated numerically in the DYNA3D program using the finite element method. The material's dynamic properties are described by a strain hardening viscoplastic constitution. A damage variable is introduced in the determination of the dynamic fracture criterion. Final rupture of structure is decided by a rupture-strain criterion which is deduced in terms of a critical damage variable. The numerical results have been compared with theoretical solutions. |
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| Keywords: | numerical simulation cylindrical shells dynamic fracture criteria explosive loading damage |
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