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Chinese Journal of High Pressure Physics  > 2013  >  27(6): 813-820.
CHEN Wei-Dong, YANG Wen-Miao, ZHANG Fan. Material Point Method for Numerical Simulation of Underwater Explosion Blast Wave[J]. Chinese Journal of High Pressure Physics, 2013, 27(6): 813-820. doi: 10.11858/gywlxb.2013.06.004
Citation: CHEN Wei-Dong, YANG Wen-Miao, ZHANG Fan. Material Point Method for Numerical Simulation of Underwater Explosion Blast Wave[J]. Chinese Journal of High Pressure Physics, 2013, 27(6): 813-820. doi: 10.11858/gywlxb.2013.06.004
shu

Material Point Method for Numerical Simulation of Underwater Explosion Blast Wave

doi: 10.11858/gywlxb.2013.06.004

  • College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China

  • Received Date: 27 Feb 2012
  • Rev Recd Date: 17 Aug 2012
  • Publish Date: 15 Dec 2013
    Abstract
  • Underwater explosive load calculation and numerical simulation are the key issues of the design of underwater conventional weapons and protection of ships and submarine. Numerical simulation of underwater explosions involves large deformation, the moving material interface and multi-media coupling. It has brought a lot of difficulties and challenges to the grid-based numerical algorithm. The material point method (MPM) is a meshfree method and takes the advantages of the both Euler and Lagrangian methods. Extension of the material point method to the numerical simulation of underwater explosion and the multi-medium coupling process was introduced. At last, spherical TNT underwater explosion in one-dimensional and TNT underwater explosion in two-dimensional were simulated. Blast wave produced by TNT exploding was computed. The spatial distribution and variation of the explosion flow field parameters were analyzed. The calculated results are in good agreement with the results of AUTODYN, empirical formula of Cole and SPH, and provide a important reference to engineering applications.

     

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