|Table of Contents|

Numerical simulation on shock waves of projectile penetrating closed-cell foam aluminum

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年03期
Page:
328-
Research Field:
Publishing date:

Info

Title:
Numerical simulation on shock waves of projectile penetrating closed-cell foam aluminum
Author(s):
Tang Jun1; Ge Jianli1; Yan Bin2; Yang Guolai1; Li Zhen1
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Northwest Institute of Mechanical and Electrical Engineering,Xianyang 712099,China
Keywords:
projectiles;  closed-cell aluminum foams;  shock waves;  nonlinear dynamics finite element models;  peak values;  pulse width;  porosity;  projectile mass
PACS:
O39
DOI:
10.14177/j.cnki.32-1397n.2016.40.03.013
Abstract:
To analyze the acceleration responses of projectiles under various projectile structures or closed-cell foam aluminum material parameters,a nonlinear dynamics finite element model of a projectile impacting closed-cell foam aluminum is established.The waveform of a projectile impacting closed-cell foam aluminum is simulated by LS-DYNA software.The influences of different parameters on impulse response are researched by a numerical method.The trend,peak value and pulse width of the acceleration curves under different conditions are studied respectively.The results show that a smooth acceleration waveform can be obtained by using conical projectiles.The peak acceleration increases and the pulse width reduces under such conditions as lower porosity,thinner target and smaller mass of the projectile.High initial speed of the projectile can increase the peak value and the pulse width of the acceleration.

References:

[1] 杨东,郭民,牛宇浩,等.高能量冲击环境试验研究[J].机械科学与技术,2000,19:7-8.
Yang Dong,Guo Min,Niu Yuhao,et al.The research of high energy shock environment test[J].Mechanical Science and Technology,2000,19:7-8.
[2]倪小军,马宏昊,沈兆武,等.泡沫铝爆炸冲击特性的数值研究[J].爆炸与冲击,2013,33(2):120-125.
Ni Xiaojun,Ma Honghao,Shen Zhaowu,et al.Numerical study on impact properties of Al foam under explosive loading[J].Explosion and Shock Waves,2013,33(2):120-125.
[3]姜夕博,饶国宁,徐森,等.冲击波在有机玻璃中衰减特性的数值模拟与实验研究[J].南京理工大学学报,2012,36(6):1059-1064.
Jiang Xibo,Rao Guoning,Xu Sen,et al.Numerical simulation and experimental research on shock wave attenuation properties in PMMA[J].Journal of Nanjing University of Science and Technology,2012,36(6):1059-1064.
[4]陈成军,谢若泽,张方举.内部填充泡沫铝的柱壳力学响应数值模拟[J].爆炸与冲击,2011,31(4):361-366.
Chen Chengjun,Xie Ruoze,Zhang Fangju.Numerical simulations on mechanical responses of aluminum foam-filled cylindrical shells[J].Explosion and Shock Waves,2011,31(4):361-366.
[5]范志庚,陈常青,万强.泡沫铝率相关性能的有限元模拟[J].爆炸与冲击,2014,34(6):742-747.
Fan Zhigeng,Chen Changqing,Wan Qiang.Finite element simulation on the rate-dependent properties of aluminum foams[J].Explosion and Shock Waves,2014,34(6):742-747.
[6]向宇,程涛.梯度泡沫铝的撞击动力学分析[J].轻金属,2012,10(10):52-57.
Xiang Yu,Cheng Tao.Impact dynamics analysis of functionally graded foamed aluminum[J].Light Metals,2012,10(10):52-57.
[7]Gaitanaros S,Kyriakides S.Dynamic crushing of aluminum foams:Part II—Analysis[J].International Journal of Solids and Structures,2014,51(9):1646-1661.
[8]李斌潮,赵桂平,卢天健.闭孔泡沫铝低速冲击防护的临界条件与优化设计[J].固体力学学报,2011,32(4):325-338.
Li Binchao,Zhao Guiping,Lu Tianjian.Critical conditions and optimal design of closed-celled aluminum foam protection under low velocity impact[J].Journal of Acta Mechanica Solida Sinica,2011,32(4):325-338.
[9]Buzek V,Drobny G,Kim M S,et al.Cavity QED with cold trapped ions[J].Physical Review A,1997,56(3):2352-2360.

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Last Update: 2016-06-30