COUPLED FE-SPH SIMULATION OF TRUNCATED-CONICAL PROJECTILES PENETRATING STEEL SHEETS

【Author】

Xiaoyu Ji~*,Inst.of Structural Mechanics,China Academy of Engineering Physics,China Yongchi Li,University of Science and Technology of China,Hefei,China Xicheng Huang,lnst.of Structural Mechanics,China Academy of Engineering Physics,China Gang Chen,lnst.of Structural Mechanics,China Academy of Engineering Physics,China

【Abstract】

<正>Particle searching over the whole calculating field makes the smoothed particle hydrodynamics method time-consuming.A coupled method of SPH and Lagrangian finite element(FE) is investigated to solve this problem in this paper.The coupled FE-SPH simulation applied to high-velocity impact problem shows that it can reduce calculating time efficiently,compared to single SPH method.At the same time,the experiments and FE-SPH simulations of truncated-conical projectiles penetrating steel plates are carried out in this paper.The results show that the coupled FE-SPH method can clearly simulate the whole petaling deformation of normal impact and the forward-backward petaling deformation of oblique impact.

【Keywords】

Smoothed particle hydrodynamics;;Coupled FE-SPH method;;High-velocity impact;;Petaling deformation

References

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Springer Journals Database

Total: 10 articles

  • [1] WU Yu-Yu,HE Yuan-Hang,LI Jin-Zhu (State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China), Application of the Coupling Method in Simulating the Hypervelocity Impact, Chinese Journal of High Pressure Physics,
  • [2] P.W. Randles;;L.D. Libersky, Smoothed Particle Hydrodynamics: Some recent improvements and applications, Computer Methods in Applied Mechanics and Engineering,
  • [3] Chen Gang, Numerical and Experimental Investigation on Penetration Effects of Semi-Armor -Piercing Warhead,,
  • [4] L.D.Libersky;A.G.Petschek, Smoothed particle hydrodynamics with strength of materials, Proceedings of The Next Free Lagrange Conf,

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