| 混凝土介质中爆炸的三维数值模拟 |
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| 引用本文： | 吴开腾,宁建国. 混凝土介质中爆炸的三维数值模拟[J]. 兵工学报, 2007, 28(4): 414-419 |
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| 作者姓名： | 吴开腾 宁建国 |
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| 作者单位： | 内江师范学院,四川省高等学校数值仿真重点实验室,四川,内江,641112;内江师范学院,数学系,四川,内江,641112;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081 |
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| 基金项目： | 国家自然科学基金，四川省应用基础研究计划，四川省教育厅资助项目 |
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| 摘 要： | 采用混凝土材料的累积损伤本构模型，用自编三维数值模拟程序( MMIC3D)对炸药（弹体）不同预埋深度、不同药量在混凝土中爆炸对其破坏效应进行了模拟研究，并考虑含自由面的情况，研究了混凝土中爆炸后爆炸场的形成、应力波的传播过程，给出了混凝土中空腔的形状与发展规律，对其数值结果用Vi。。2D和Visc3D动态显示了无限介质以及半无限介质中空腔的形成与发展、表面的运动规律和爆炸形成漏斗坑的过程，得到了与物理分析和理论分析一致的结果。
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| 关 键 词： | 爆炸力学 侵彻 爆轰 混凝土 破坏效应 三维数值模拟 |
| 文章编号： | 1000-1093（2007）04-0414-06 |
| 修稿时间： | 2005-09-27 |
3D Numerical Simulation of Explosion in Concrete |
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| WU Kai-teng,NING Jian-guo. 3D Numerical Simulation of Explosion in Concrete[J]. Acta Armamentarii, 2007, 28(4): 414-419 |
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| Authors: | WU Kai-teng NING Jian-guo |
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| Affiliation: | I.Sichuan Provincial Key Laboratory of Numerical simulation，Neijiang Teacher’s College, Neijiang 641112,Sichuan, China;2.Department of Mathematics, Neijiang Normal College, Neijiang 641112, Sichuan,China;3.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081，China |
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| Abstract: | Based on cumulating damage model of concrete,the damage effect of explosive in concrete was simulated by the three dimensional simulating code MMIC3D under different buried depth and weight of dynamite(warhead),and considered including free surface.And the stress wave propagation and the formed process were studied in the concrete explosive field of the infinite or the semi-infinite.The moving images of computational results dealt with the Visc2D and the Visc3D software illuminate the development of the hollow,the formation of the pit and law of the surface motion form.Some results in accordance with physical and theoretical analysis were obtained. |
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| Keywords: | explosive mechanics penetration detonation concrete damage effect 3D numerical simulation |
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