| 含铝炸药在混凝土介质中爆炸响应的FE-SPH算法模拟研究 |
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| 引用本文： | 杨刚,郑建民,胡德安.含铝炸药在混凝土介质中爆炸响应的FE-SPH算法模拟研究[J].振动与冲击,2016,35(1):28-33. |
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| 作者姓名： | 杨刚 郑建民 胡德安 |
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| 作者单位： | 湖南大学 机械与运载工程学院 特种装备先进技术与仿真教育部重点实验室，长沙 410082 |
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| 摘 要： | 本文采用自编程实现的二维轴对称FE-SPH耦合算法对含铝炸药在混凝土介质中的爆炸响应过程进行模拟研究。含铝炸药的爆炸过程采用JWL方程结合Miller反应率方程来描述，同时采用粒子接触算法避免爆炸响应后转化的SPH粒子点间形成堆积及非物理穿透。对不同含铝量的高能炸药在不同埋深下爆炸响应过程进行模拟，通过对混凝土的毁伤及预设动能杆的运动分析，结果表明，所实现的FE-SPH耦合算法能够稳定再现含铝炸药爆炸对混凝土介质的破坏响应过程，并且响应的特征参量也与实验数据吻合。
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| 关 键 词： | 含铝炸药 爆炸 FE-SPH耦合方法 数值模拟 /> |
Application of FE-SPH method to explosion in concrete by aluminized explosives |
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| Yang Gang,Zheng Jian-min,Hu De-an.Application of FE-SPH method to explosion in concrete by aluminized explosives[J].Journal of Vibration and Shock,2016,35(1):28-33. |
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| Authors: | Yang Gang Zheng Jian-min Hu De-an |
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| Affiliation: | Key Laboratory of Advanced Design and Simulation Technology for Special Equipments Ministry of Education，College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082 |
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| Abstract: | The self code of two-dimensional axisymmetric FE-SPH method is applied to simulate the explosion process of aluminized explosives in concrete. Explosion process of aluminized explosive is described by JWL equation of state and Miller reaction rate equation. In order to avoid the accumulation and non-physical penetration of particles that formation from FE elements after the explosion, the particle-particle contact method is adopt. The explosion processes of aluminized explosives with different aluminum content in different depth of concrete have been simulated. Numerical results show that the FE-SPH method can stably reproduce the explosion process of aluminized explosives in concrete. The characteristic parameters of explosive respond obtained by FE-SPH method are in good agreement with experiment results. |
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| Keywords: | aluminized explosive explosion FE-SPH method numerical simulation |
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