Coupled fluid–structure interaction based numerical investigation on the large deformation behavior of thin plates subjected to under water explosion

被引：0
作者：
Suresh C. [1 ]
Ramajeyathilagam K. [1 ]
机构：
[1] School of Aeronautical Sciences, Hindustan Institute of science and Technology, Chennai
来源：
International Journal of Vehicle Structures and Systems | 2020年 / 12卷 / 04期
关键词：
Fluid-structure interaction; Large deformation; Shock wave; Taylor’s plate theory; Underwater explosion;
D O I：
10.4273/ijvss.12.4.16
中图分类号：
学科分类号：
摘要：
Coupled fluid structure interaction based numerical investigation on rectangular mild steel plates subjected to underwater explosion is tested using Explosion Bulge Testing (EBT) is presented in this paper. The test plate along with the EBT box model fixture immersed in water domain subjected to small explosive charges of PEK I at a standoff distance of 0.15 m from centre of the plate is considered for the analysis using LSDYNA code. For the analysis, explosive charge is modelled using high explosive burn with JWL equation of state. The fluid is using null material model with Gruinesian equation of state, the EBT setup is using Lagrangian solid element with rigid material model and the test plate is modelled using Belytschko-Tsay shell element with piece-wise linear plasticity material model. The numerical analysis aims to predict the permanent deformation of the plate under various shock loading conditions. The results are then compared with experimental results available in the literature and numerical results based on Taylor’s plate theory. Parametric investigations on the large deformation behaviour of different plate thickness of various shock loading conditions are presented. © 2020. MechAero Foundation for Technical Research & Education Excellence.
引用
收藏
页码：436 / 442
页数：6
相关论文
共 15 条
  • [1] Keil A.H., The response of ships to underwater explosion, (1961)
  • [2] Gupta A.D., Gregory F.H., Bitting R.L., Bhattacharya S., Dynamic analysis of an explosively loaded hinged rectangular plate, Computers and Structures, 26, 1-2, pp. 339-344, (1987)
  • [3] Klaus M.H., Response of a panel wall subjected to blast loading, Computers and Structures, 21, pp. 129-135, (1985)
  • [4] Houlston R., Slater J.E., Pegg N., DesRachers C.G., On analysis of structural response of ship panels to air blast loading, Computers and Structures, 21, 1-2, pp. 273-289, (1985)
  • [5] Koko T.S., Olson M.D., Non-linear transient response of stiffened plates to air blast loading by a super element approach, Computational Methods Applied Mech., Engg, 90, 1-3, pp. 737-760, (1991)
  • [6] Olson M.D., Nurick G.N., Fagnan J.R., Deformation and rupture of blast loaded square plates-predictions and experiments, Int. J. Impact Engg, 13, 2, pp. 279-291, (1993)
  • [7] Nurick G.N., Olson M.D., Fagnan J.R., Levin A., Deformation and tearing of blast loaded stiffened square plates, Int. J. Impact Engg, 16, 2, pp. 273-291, (1995)
  • [8] Nurick G.N., Shave G.C., Deformation and tearing of thin square plates subjected to impulsive loading, Int. J. Impact Engg, 18, 1, pp. 99-116, (1996)
  • [9] Nurick G.N., Gelman M.E., Marshall N.S., Tearing of blast loaded plates with clamped boundary conditions, Int. J. Impact Engg, 18, 7-8, pp. 803-827, (1996)
  • [10] Ramajeyathilagam K., Vendhan C.P., Rao V.B., Nonlinear transient dynamic response of rectangular plates under shock loading, Int. J. Impact Engg, 24, 10, pp. 999-1015, (2000)
12