구조체에 작용하는 중소규모 혼합가스 폭발해석을 위한 최적 등가 TNT 해석 기법

다국어 초록 (Multilingual 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.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 폭발하중
• 3. 수치해석
• 4. 해석결과
• 5. 결론
• REFERENCES

참고문헌 (Reference)

1 채재우, "실내가스폭발 해석에 관한 연구" 한국가스학회 7 (7): 5-29, 2003

2 고재선, "국내 LP 및 천연가스사고 Database 구축 및 분석에 관한 연구" 한국가스학회 12 (12): 56-63, 2008

3 Ernesto, S., "The analysis of domino accidents triggered by vapor cloud explosion" 90 : 271-284, 2005

4 Paz, M., "Structural Dynamics: Theory and Computation, 4th edithon." Chapman & Hall 613-, 1997

5 Kim, D., "Numerical Prediction of Blast Effects Caused by Largy-Scale Explosion of LOX/LNG Fuel" 201-208, 2008

6 Zukas, J., "Introduction to Hydrocodes" Elsevier 313-, 2004

7 CCPS, "Guidelines for Evaluating the Characteristics of Vapor Cloud Explosions, Flash Fires And BLEVEs" AlChE 260-, 1994

8 Korea Gas Safety Corporation, "Gas Accident Yearbook"

9 Jung, W., "Explosion Engineering" Jungdam Media 329-, 2007

10 Zhang. B., "Explosion Characteristics of Argon/Nitrogen Diluted Natural Gas-Air Mixture" 124 : 125-132, 2014

11 Gordon, S., "Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Application" NASA 54-, 1994

12 장창봉, "CFD를 이용한 가연성 가스의 확산 및 폭발 Simulation" 한국가스학회 16 (16): 58-65, 2012

13 Smith, P., "Blast and Ballistic Loading of Structure" Laxton's 336-, 1994

14 Ansys, "AUTODYN Theory Manual"

15 Tak, S., "A Study on the Consequence Analysis of an Explosion in the Gas Facilities" 160-165, 2003

16 Park, D., "A Review of the Different Models for Predicting Blast Overpressures Caused by Vapor Cloud Explosions" 4 (4): 50-57, 2000