유한요소법을 이용한 인체 허벅지 피탄 시 총탄 속도에 따른 동맥 손상 확률 예측

Abstract

Gunshot wounds are one of the major injuries of soldiers in the battlefields. In Operation Enduring Freedom and Operation Iraqi Freedom, about 20% of all injuries were caused by gunshot wounds and the probability was over 90% in the civil war. In addition, about 54% of all combat wounds were in the arms of legs. If someone is shot on their extremities, excessive bleeding due to artery rupture is usually the major cause of death. Therefore, the objective of this study is to predict artery rupture probability depending on bullet speed when shot on the thigh. In order to predict artery rupture probability, artery maximum strains depending on bullet speed were obtained by the finite element method when the distance between shot position and artery is 3cm. The artery rupture probability was calculated using the analysis results of maximum artery strain and probability density function of artery yield strain obtained from experimental results. From these results, it can be seen that the artery rupture probability increased in the quadratic form as bullet speed increased. This study can be used to predict survivability of soldiers who perform military mission in battle fields.