Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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SPH Parameters for Analysis of Penetration Phenomenon at Hypervelocity Impact of Meteorite

운석의 초고속 충돌 관통현상 해석을 위한 SPH 매개변수

  • 이성수 (연세대학교 대학원 기계공학과) ;
  • 서송원 (연세대학교 대학원 기계공학과) ;
  • 민옥기 (연세대학교 기계공학부)
  • Published : 2003.10.01
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Abstract

Smoothed Particle Hydrodynamics (SPH), a pure Lagrangian numerical method, is applied to analysis of penetration phenomenon of bumper plate which is installed outside of spacecraft hull to protect the spacecraft against hypervelocity meteorite impact. Effects of SPH parameters, such as artificial viscosities, smoothing lengths, numbers of particles and time increments, are analysed by comparing the SPH simulation results with experimental ones with regard to subsequent formation of debris cloud. An optimum range of parameter values is determined by error analysis and various SPH numerical results are compared with experiments.

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References

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  1. A Study on the Kinetic Energy and Dispersion Behavior of High-velocity Impact-induced Debris Using SPH Technique vol.40, pp.5, 2016, https://doi.org/10.3795/KSME-A.2016.40.5.457