Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Optimized TNT Equivalent Analysis Method for Medium and Small Scale Mixture Gas Explosion on Structural Elements

구조체에 작용하는 중소규모 혼합가스 폭발해석을 위한 최적 등가 TNT 해석 기법

  • Received : 2015.06.18
  • Accepted : 2015.11.16
  • Published : 2015.11.30
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Abstract

In this paper, the analysis of TNT equivalent method for practical mixture gas explosion was performed to simplify the gas explosion analysis. Autodyn which was specialized for analysis of explosion and impact was used to simulate the behavior of structural element. By using linear elastic material properties, we can see general displacement behavior aspect and consider various natural periods of structural element. After comparing model of mixture gas property with TNT equivalent model in terms of the maximum displacement of structural elements, we proposed optimized TNT equivalent analysis method for practical mixture gas explosion by using proper explosion efficiency. The mixture gas properties was obtained from C.E.A program which can calculate chemical equilibrium product concentration from any set of reactants and determines thermodynamic and transport properties for the product mixture.

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