Explosives and Blasting (화약ㆍ발파)

Korean Society of Explosives and Blasting Engineering (대한화약발파공학회)
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Numerical Modeling of the Detonation of Explosives Using Hydrodynamics Codes

유체 동역학 코드를 이용한 화약의 폭발과정에 대한 수치 모델링

  • 박도현 (한국지질자원연구원 지구환경연구본부) ;
  • 최병희 (한국지질자원연구원 지구환경연구본부)
  • Received : 2016.05.03
  • Accepted : 2016.05.24
  • Published : 2016.06.30
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Abstract

The hydrodynamics code is a numerical tool developed for modeling high velocity impacts where the materials are assumed to behave like fluids. The hydrodynamics code is widely used for solving impact problems, such as rock blasting using explosives. For a realistic simulation of rock blasting, it is necessary to model explosives numerically so that the interaction problem between rock and explosives can be solved in a fully coupled manner. The equation of state of explosives, which describes the state of the material under given physical conditions, should be established. In this paper, we introduced the hydrodynamics code used for explosion process modeling, the equation of state of explosives, and the determination of associated parameters.

유체 동역학 코드는 고속 충돌을 모델링하는 수치해석 툴로서 재료가 유체처럼 거동한다고 가정하며, 화약을 이용한 암반발파와 같은 충돌 문제를 푸는 데 광범위하게 사용된다. 암반발파를 현실적으로 모사하기 위해서는 화약을 수치해석적으로 모델링할 필요가 있으며, 이를 통해 암반과 화약의 상호작용 문제를 완전 연계된 방식으로 풀 수 있다. 화약을 수치 모델링하기 위해서는 특정 물리적 조건에서 재료의 상태를 나타내는 상태 방정식이 수립되어야 한다. 본 고에서는 발파 과정을 수치 모델링하기 위한 유체 동역학 코드, 화약의 상태 방정식과 관련 매개변수의 결정방법에 대해 소개하였다.

Keywords

References

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