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김의수 ( E. S. Kim ),심종헌 ( J. H. Shim ),김진표 ( J. P. Kim ),박남규 ( N. K. Park ) 한국안전학회(구 한국산업안전학회) 2016 한국안전학회지 Vol.31 No.3
The gas leak and explosion accident is able to give a fatal injury to nearby people from the explosion center and interest in effect of the explosion on the human body is increased. Accidents by Portable Butane Gas Range of a gas explosion accident occupy the most share. As a result, the injury on the human body frequently occur. However, It is situation that are experiencing difficulties in consequence analysis of explosion accidents owing to shortage of explosion power data and lack of research on the effect of the human body by the gas explosion. This paper acquire human injury data by performing the actual explosion experiment with Portable Butane Gas Range and evaluate power by explosion and effect of explosion on the human body to perform explosion simulation with LS-DYNA program. It is intended to contribute to the exact cause of the accident investigation and the same type of accident prevention.
ANSYS를 이용한 스캐폴딩 시스템 타워 구조 건전성 평가에 관한법공학적 연구
김종혁 ( J H Kim ),김의수 ( E S Kim ),박우식 ( W S Park ),문병선 ( B S Moon ),고재모 ( J M Goh ),박남규 ( N K Park ),윤기봉 ( K B Yoon ),조성욱 ( S W Cho ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.6
Forensic engineering is the application of engineering principles covering the investigation of constructed facilities and systems that fail to perform as intended, causing personal injury or damage to property, environmental, economy etc. In the year 2012, two collapsed accidents of the large scaffolding system in national thermal power station occurred one after another, causing many casualties. In this study,we had performed to investigate the collapsed accident of scaffolding system occurred in the a thermal power station of two accidents. First,the investigation about the collapsed accidents site had performed to understand collapsed state and structures of the scaffolding system. Second, reviewing the materials concerning about the applied weight on the scaffolding system had performed. The applied weight is sum of the weights of the 15 workers, additional materials for coating work and dispersed and loaded shot ball on the foothold etc. the applied weight that calculated exceed more three times than the safe working load. Third, we had confirmed the install state of the materials of the scaffolding system by reviewing the quantity of the materials on the manual and the real system. Last, structural analysis had performed to evaluate structural integrity of the scaffolding system using Ansys. Through a series of this processes, the definite accidents causes of the collapsed scaffolding system revealed. Through these studies, the collapse accident that may occur in the scaffolding system in thermal power station can be minimized by performing specialized and systematic investigation on the accidents in terms of Forensic engineering.