Numerical investigation of thin plate subjected to blast wave propagation in air and water

被引：0
作者：
Suresh C. [1 ]
Ramajeyathilagam K. [1 ]
机构：
[1] SIMCRASH Centre, School of Aero. Sci., Hindustan Institute of Sci. and Tech., Chennai, Tamil Nadu
来源：
International Journal of Vehicle Structures and Systems | 2019年 / 11卷 / 05期
关键词：
Air blast; Deformation; Explosion; Shock wave; Steel plate; Under water; Velocity;
D O I：
10.4273/ijvss.11.5.06
中图分类号：
学科分类号：
摘要：
Numerical investigations on a thin rectangular plate subjected to air blast and underwater using LS DYNA is presented in this paper. For the analysis, the box model setup, air/water medium and target plate are modelled and the explosive is assumed at a distance of 150 mm from the target plate at the normal line passing through the centre of the plate. The target plate is modelled using piece-wise linear plasticity material model, the fluid using Gruinesian equation of state, air using linear polynomial equation of state and explosive using JWL equation of state. Parametric study in terms of charge weight is carried and the results are presented for various shock factors. The free field pressure time history and the permanent deformation are compared with experimental results available in literature. The study indicates that the permanent deformation is about 5.5 times that of air blast in underwater explosion. © 2019. MechAero Foundation for Technical Research & Education Excellence.
引用
收藏
页码：497 / 500
页数：3
相关论文
共 9 条
  • [1] Mehreganian N., Fallah A.S., Boiger G.K., Louca L.A., Response of armour steel plates to localised air blast load-A dimensional analysis, Int. J. Multiphysics, 11, 4, pp. 387-412, (2014)
  • [2] Oskouei A.V., Kiakojouri F., Steel plates subjected to uniform blast loading, Applied Mechanics and Materials, 108, pp. 35-40, (2012)
  • [3] Tavakolia H.R., Kiakojourib F., Numerical dynamic analysis of stiffened plates under blast loading, Latin American J. Solid and Structures, 11, pp. 185-199, (2014)
  • [4] Lin X., Ashraf M., Pressure-impulse response of semi-rigidly connected steel plates under blast loading, Int. J. Protective Structures, 8, 1, pp. 25-57, (2017)
  • [5] Park J.Y., Jo E., Kim M.S., Lee S.J., Lee Y.H., Dynamic behaviour of a steel plate subjected to blast loading, Trans. Canadian Society for Mech. Engg., 40, 4, (2016)
  • [6] Ramajeyathilagam K., Vendhan C.P., Rao V.B., Nonlinear transient dynamic response of rectangular plates under shock loading, Int. J. Impact Engg., 24, (2000)
  • [7] Liang C.C., Tai Y.S., Shock responses of a surface ship subjected to noncontact underwater explosions, Ocean Engg, 33, pp. 748-772, (2006)
  • [8] Chen Y., Tong Z.P., Hua H.X., Wang Y., Gou H.Y., Experimental investigation on the dynamic response of scaled ship model with rubber sandwich coatings subjected to underwater explosion, Int. J. Impact Engg., 36, pp. 318-328, (2009)
  • [9] Goel M.D., Matsagar V.A., Gupta A.K., Dynamic response of stiffened plates under air blast, Int. J. Protective Structures, 2, 1, (2011)
1