Application of FE-SPH method to explosion in concrete by aluminized explosives
Yang Gang, Zheng Jian-min, Hu De-an
Key Laboratory of Advanced Design and Simulation Technology for Special Equipments Ministry of Education，College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082
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.
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.
Yang Gang, Zheng Jian-min, Hu De-an. Application of FE-SPH method to explosion in concrete by aluminized explosives. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(1): 28-33.
[1] 孙业斌，惠君明，曹欣茂．军用混合炸药[M]．北京：兵器工业出版社，1995．
Sun Ye-bin，Hui Jun-ming，Cao Xin-mao．Military Explosive Mixture[M]．Beijing：Weapon Industry Press，1995．
[2] 项大林，荣吉利，李健，等．黑索今基含铝炸药的铝氧比对爆轰性能及其水下爆炸性能的影响[J]．兵工学报，2013，34（1）：45-50．
Xiang Da-lin，Rong Ji-li，Li Jian，et al．Effect of Al/O ratio on detonation performance and underwater explosion of RDX-based aluminized explosive[J]．Acta Armamentarii，2013，34（1）：45-50．
[3] 李小雷，聂建新，覃剑锋，等．含铝炸药在混凝土中爆炸效应的数值模拟研究[J]．爆 破，2012，29（3）：109-114．
Li Xiao-lei，Nie Jian-xin，Qin Jian-feng，et al．Numerical simulation of explosion effects in concrete by aluminized explosives[J]．Blasting，2012，29（3）：109-114．(in Chinese)
[4] 杨秀敏，朱兆祥，郑哲敏．爆炸冲击现象数值模拟[M]．中国科学技术大学出版社，2010．
Yang Xiu-min，Zhu Zhao-xiang，Zheng Zhe-min．Numerical Simulation for Explosion and Phenomenon[M]．Press of University of Science and Technology of China，2010．
[5] 沈飞，王辉，袁建飞，等．RDX基含铝炸药不同尺寸的圆筒试验及数值模拟[J]．含能材料，2013，21（6）：777-780．
Shen Fei，Wang Hui，Yuan Jian-fei，et al．Different diameter cylinder tests and numerical simulation of RDX based aluminized explosive[J]．Chinese Journal of Energetic Materials，2013，21（6）：777-780．
[6] 陈朗，冯长根，赵玉华，等．含铝炸药爆轰数值模拟研究[J]．北京理工大学学报，2001，21（4）：415-419．
Chen Lang，Fen Chang-gen，Zhao Yu-hua，et al．Numerical simulations of the detonation of aluminized explosives[J]．Journal of Beijing Institute of Technology，2001，21（4）：415-419．
[7] 杨亚东，李向东，王辉，等．RDX基含铝炸药和TNT浅层土壤中爆炸开坑的数值模拟与试验[J]．火炸药学报，2013，36（2）：24-29．
Yang Ya-dong, Li Xiang-dong, Wang Hui，et al．Numerical simulation and experiment of craters formed by RDX-based aluminized explosive and TNT in shallow soil[J]．Chinese Journal of Explosives & Propellants，2013，36（2）：24-29．
[8] 初文华，张阿漫，明付仁等．SPH-FEM耦合算法在爆炸螺栓解锁分离过程中的应用[J]．振动与冲击，2012，31（23）：197-202．
CHU Wen-hua，ZHANG A-man，MING Fu-ren，et al．Application of three-dimensional SPH-FEM coupling method in unlocking process of an explosion bolt[J]．Journal of Vibration and Shock，2012，31（23）：197-202．
[9] 林晓东，卢义玉，汤积仁等．基于SPH-FEM耦合算法的磨料水射破岩数值模拟[J]．振动与冲击，2014，33（18）：170-176．
LIN Xiao-dong，LU Yi-yu，TANG Ji-ren，et al．Numerical simulation of abrasive water jet breaking rock[J]．Journal of Vibration and Shock，2014，33（18）：170-176．
[10] 张雄，王天舒．计算动力学[M]．清华大学出版社，2007，285-288．
Zhang Xiong，Wang Tian-shu．Computational Dynamics[M]．Tsinghua University Press2007，285-288．
[11] Xiao Yi-hua，Hu De-an，Han Xu，et al．Simulation of normal perforation of aluminum plates using axisymmetric smoothed particle hydrodynamics with contact algorithm[J]．International Journal of Computational Methods，2013，10(3)．
[12] 肖毅华，胡德安，韩旭，等．一种自适应轴对称FEM-SPH耦合算法及其在高速冲击模拟中的应用[J]．爆炸与冲击，2012，32(4)：384-392．
Xiao Yi-hua，Hu De-an，Han Xu，et al．An adaptive axisymmetric FEM-SPH coupling algorithm and its application to high velocity impact simulation．Explosion and Shock Waves，2012，32(4)：384-392．
[13] Miller P J，Guirguis R H．Experimental study and model calculation of metal combustion in AL/AP underwater explosives[J]．Mat Res Soc Symp Proc，1993，296：299-304．
