A Study on the technique of impact analysis against concrete target using Lagrangian and Smoothed Particle Hydrodynamics

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Journal of the Korea Institute of Military Science and Technology 2002;5(2):207-216.

라그란지안 기법과 입자완화동력학 기법을 이용한 콘크리트 표적 충돌해석 기법 연구

하동호

국방과학연구소

Abstract

In this paper, the study on the behavior of the deformation of brittle material, such as concrete, ceramic, was peformed by comparison of Lagrangian technique and Smoothed Particle Hydrodynamics using commercial nonlinear hydrodynamic numerical program, Autodyn_2D. The effect of SPH technique was proved by investigating the behavior of material deformation, velocity profile and pressure profile.

Key Words: Lagrangian, Smoothed Particle Hydrodynamics, Kernel function, Smoothing length, Eulerian