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논문 기본 정보

자료유형
학술저널
저자정보
Eui Soo Kim (Korea National University of Transportation)
저널정보
한국가스학회 한국가스학회지 한국가스학회지 제26권 제5호
발행연도
2022.10
수록면
58 - 65 (8page)

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초록· 키워드

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Gas explosion accidents could cause a catastrophe. we need specialized and systematic accident investigation techniques to shed light on the cause and prevent similar accidents. In this study, we had performed LPG explosion simulation using AUTODYN which is the commercial explosion program and predicted the damage characteristics of the structures by LNG explosive power. In the first step, we could get LPG’s physical and chemical explosion properties by calculation using TNT equivalency method. And then, by applying TNT equivalency value about the explosion limit concentration of LPG on the 2D-AUTODYN simulation, we could get the explosion pressure wave profiles (explosion pressure, explosion velocity, etc.). In the last step, we performed LPG explosion simulation by applying to the explosion pressure wave profiles as the input data on the 3D-AUTODYN simulation. As a result, we had performed analyzing of the explosion characteristics of LPG in accordance with concentration through the 3D-AUTODYN simulation in terms of the explosion pressure behavior and structure destruction and damage behavior. The analyses showed that the generated stresses of the structures were lower than the compressive strengths in cases 1(two lane) and 2(four lane), while the generated stress in case 3(six lane) was 8.68e3 kPa, which exceeded the compressive strength of 5.89e3 kPa.

목차

Abstract
I. Introuduction
II. STRUCTURE AND TNT EQUIVALENT WEIGHT
III. STRUCTURAL FRACTURE EVALUATION USING AUTODYN
IV. CONCLUSION
References

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UCI(KEPA) : I410-ECN-0101-2023-575-000157299