Finite Element Analysis of Pedestrian Lower Extremity Injuries in Car-to-Pedestrian Impacts
Finite Element Analysis of Pedestrian Lower Extremity Injuries in Car-to-Pedestrian Impacts
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DOI：
10.4271/2007-01-0755
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发表时间：
2007-04
期刊：
影响因子：
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通讯作者：
S. Kuwahara;Toshio Hosokawa;K. Okada;K. Mizuno
中科院分区：
文献类型：
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作者：
S. Kuwahara;Toshio Hosokawa;K. Okada;K. Mizuno
本文摘自2007年4月在美国密歇根州底特律市举行的SAE世界大会暨展览会。作为行人安全会议的一部分，本文描述了一项研究，该研究使用人体有限元（FE）模型来更好地了解汽车和行人之间的碰撞动力学。为了了解行人被汽车撞击时下肢受伤的机制并防止其受伤，研究人员必须确定汽车前部结构对人体下肢的载荷。作者介绍了一个弯矩图和胫骨应力图，以检查来自汽车结构的负载的影响。下吸收体的某些位置降低了胫骨骨折和膝关节损伤的风险。作者还使用TRL腿部冲击器对腿部冲击试验进行了有限元分析。TRL腿部冲击器和人体有限元模型的损伤标准之间的关系。TRL腿形撞击器的高加速度对应于人体FE模型的胫骨骨折或MCL断裂。
This paper is from the SAE World Congress & Exhibition, held in April 2007 in Detroit, Michigan, USA. Part of the Pedestrian Safety session, this paper describes a study that used a human finite element (FE) model to better understand the dynamics of an impact between a car and a pedestrian. As a way to understand the mechanisms of and prevent lower extremity injuries to a pedestrian when struck by a car, researchers must determine the loadings from car front structures on the lower extremities of the body. The authors introduced a bending moment diagram and a stress diagram of the tibia to examine the effects of loading from car structures. Certain positions of the lower absorber reduced the tibia fracture and knee injury risks. The authors also conducted an FE analysis of a legform impact test using the TRL legform impactor. A relationship was found between the injury criteria of the TRL legform impactor and the human FE model. High acceleration of the TRL legform impactor corresponded to the tibia fracture or MCL rupture of the human FE model.