Virtual Reconstruction of Long Bone Fracture in Car-to-pedestrian Collisions Using Multi-body System and Finite Element Method

作     者：HAN Yong YANG Jikuang MIZUNO Koji 

作者机构：State Key Laboratory of Advanced Design and Manufacturing for Vehicle BodyHunan UniversityChangsha 410082China Department of Applied MechanicsChalmers University of TechnologyGothenburg 41296Sweden Department of Mechanical Science and EngineeringNagoya UniversityNagoya 464-8601JapanState 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报(英文版))

年 卷 期：2011年第24卷第6期

页      面：1045-1055页

核心收录：

学科分类：082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程] 

基　　金：supported by National Hi-tech Research and Development Program of China (863 Program,Grant No. 2006AA110101) "111 Program" of Ministry of Education and State Administration of Foreign Experts Affairs of China (Grant No. 111-2-11) General Motors Research and Development Center (Grant No. RD-209) Project of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,China (Grant No. 60870004) 

主　　题：passenger car pedestrian accident lower limb FE model long bone fracture impact biomechanics 

摘      要：Lower limb injures are frequently observed in passenger car traffic *** studies of the injuries focus on long bone fractures by using either cadaver component tests or simulations of the long bone kinematics,which lack in-depth study on the fractures in stress *** paper aims to investigate lower limb impact biomechanics in real-world car to pedestrian accidents and to predict fractures of long bones in term of stress parameter for femur,tibia,and *** the above purposes,a 3D finite element(FE) model of human body lower limb(HBM-LL) is developed based on human *** model consists of the pelvis,femur,tibia,fibula,patella,foot bones,primary tendons,knee joint capsule,meniscus,and *** FE model is validated by comparing the results from a lateral impact between simulations and tests with cadaver lower limb *** real-world accidents are selected from an in-depth accident database with detailed information about the accident scene,car impact speed,damage to the car,and pedestrian ***-body system(MBS) models are used to reconstruct the kinematics of the pedestrians in the two accidents and the impact conditions are calculated for initial impact velocity and orientations of the car and pedestrian during the *** FE model is used to perform injury reconstructions and predict the fractures by using physical parameters,such as von Mises stress of long *** calculated failure level of the long bones is correlated with the injury outcomes observed from the two accident *** reconstruction result shows that the HBM-LL FE model has acceptable biofidelity and can be applied to predict the risk of long bone *** study provides an efficient methodology to investigate the long bone fracture suffered from vehicle traffic collisions.