Numerical investigation of near-field underwater explosion using SPH-FEM method

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (2) : 129-135.

JIANG Zhongtao1，WANG Lei2，SUN Peng-nan1，HUANG Xiao1

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Abstract

The response of structures subjected to underwater shock wave is a high nonlinear problem, the main difficulties of which are the determination of the magnitude of shock wave load and the response of structures under thetransient load. Based on an improved axisymmetric Smoothed Particle Hydrodynamics (abbreviated as SPH) method, the near-field load of the underwater explosion is calculated and then it is transmitted to the FEM solving package ABAQUS. Based on the coupled acoustic-structure model in ABAQUS, the nonlinear response of the structure is obtained. The solving process described above is named as SPH-FEM model, based on which, one can simulate the near-field underwater explosion starting from the detonation of the explosive charge to the large deformation,local tearing and complete damaging of the structure. The theoretical aspects of axisymmetric SPH method are presented in detail in the first part, and then in the numerical results, the shock wave pressure load is validated by the experimental data. After that, the responses of rectangular plates subjected to near-field explosion are numerically investigated. The numerical results agree well with the experimental observations. Finally, some useful conclusions regarding near-field explosion are drawn. The SPH-FEM model introduced here is robust and efficient, which is suitable for engineering applications.

Key words

ship engineering / rectangular plate / near-field explosion / SPH-FEM / structure damage

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JIANG Zhongtao1，WANG Lei2，SUN Peng-nan1，HUANG Xiao1. Numerical investigation of near-field underwater explosion using SPH-FEM method[J]. Journal of Vibration and Shock, 2016, 35(2): 129-135

References

[1] Ramajeyathilagam K, Vendhan C P. Deformation and rupture of thin rectangular plates subjected to underwater shock[J]. International Journal of Impact Engineering, 2004,30: 699-719.
[2] 姚熊亮,张阿漫,许维军. 声固耦合方法在舰船水下爆炸中的应[J]. 哈尔滨工程大学学报, 2005,26(6): 707-712.
YAO Xiong-liang, ZHANG A-man, XU Wei-jun. Application of coupled acoustic-structure analysis to warship underwater explosion[J].Journal of Harbin Engineering University, 2005,26(6): 707-712.
[3] 宗智,赵延杰，邹丽. 水下爆炸结构毁伤的数值计算[M]. 北京:科学出版社,2014.
[4] 朱锡,白雪飞,黄若波,等. 船体板架在水下接触爆炸作用下的破口试验[J]. 中国造船, 2003,44(1):46-52.
ZHU Xi,BAI Xue-fei,HUANG Ruo-bo,et al. Crevasse experiment research of plate membrance in vessels subjected to underwater contact explosion[J]. Shipbuilding of China, 2003,44(1): 46-52.
[5] 姚熊亮,张阿漫,许维军,等.基于 ABAQUS 软件的舰船水下爆炸研究[J]. 哈尔滨工程大学学报,2006,27(1): 37- 41.
YAO Xiong-liang, ZHANG A-man, XU Wei-jun, et al. Research on warship underwater explosion with ABAQUS software [J].Journal of Harbin Engineering University, 2006,27(1): 37-41.
[6] Geers T L,Hunter K S. An integrated wave-effects model for an underwater explosion bubble[J]. J. Acoust. Soc. Am., 2002,111(4): 1584-1601.
[7] 李金河,赵继波,谭多望,等. 炸药水中爆炸的冲击波性能[J]. 爆炸与冲击, 2009,29(2): 172-176.
LI Jin-he,ZHAO Ji-bo,TAN Duo-wang, et al. Underwater shockwave performances of explosive [J]. Explosion and Shock Waves, 2009,29(2): 172-176.
[8] Ming F R, Sun P N, Zhang A M.Investigation on charge parameters of underwater contact explosion based on axisymmetric SPH method [J]. Applied Mathematics and Mechanics, 2014,35(4): 453-468.
[9] Liu M B, Liu G R. Smoothed particle hydrodynamics (SPH): an overview and recent developments [J]. Archives of Computational Methods in Engineering, 2010,17(1): 25-76.
[10] Rajendran R, Paik J K, Lee J M. Of underwater explosion experiments on plane plates[J]. Experimental Techniques, 2007,31(1):18-24.
[11] Rajendran R, Narasimhan K.Performance evaluation of hsla steel subjected to underwater explosion [J]. Journal of Materials Engineering and Performance, 2001,10(1): 66- 74.
[12] Liu, G R, Liu M B. Smoothed particle hydrodynamics: a meshfree particle method [M]. World Scientific,2003.
[13] Colagrossi A,Landrini M. Numerical simulation of interfacial flows by smoothed particle hydrodynamics [J]. Journal of Computational Physics, 2003,191(2): 448-475.
[14] Benz W. Smoothed particle hydrodynamics: a review [J]. NATO Workshop, Les, Arcs, France, 1990,302:269-288.
[15] Zhang A M, Cao X Y, Ming F R, et al. Investigation on a damaged ship model sinking into water based on three dimensional SPH method [J]. Applied Ocean Research, 2013, 42: 24-31.
[16] 明付仁，张阿漫，杨文山，等. 舰船水下接触爆炸的SPH算法研究[J].振动与冲击, 2012, 31 (10): 147-151.
MING Fu-ren, ZHANG A-man, YANG Wen-shan, et al. SPH algorithm to deal with the problem of underwater contact explosion of warship [J]. Journal of Vibration and Shock, 2012, 31 (10): 147-151.
[17] 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-FEMcoupling method in unlocking process of an explosion bolt [J]. Journal of Vibration and Shock, 2012, 31 (23): 197-202.