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Rider Stature Influence to Injury Risk in Motorcycle Rear Impact to Car

Tianjin University of Science and Technology-Wenle Lv
University of West Bohemia-Ludek Hyncik, Tomasz Bonkowski
Published 2019-03-25 by SAE International in United States
Road traffic accidents cause one of the highest numbers of severe injuries. Approximately 1.25 million people die each year as a result of road traffic crashes and between 20 and 50 million more people suffer non-fatal injuries, with many incurring a disability. Nearly half of those dying on the roads are so-called vulnerable road users, namely pedestrians, cyclists and two-wheeler riders including motorcyclists. Those vulnerable road users usually undergo complex kinematics and complex loading caused by the other vehicle impact.Virtual human body biomechanical models play an important role to assess the injuries during the impact loading especially for scenarios, where complex dynamical loading is taken into account. An additional benefit of some virtual human models is their scalability, so that they can assess the injury risk for the particular subject taking into account a wide spectrum of the whole population.The presented work shows the motorcycle rider injury risk analysis during the rear motorcycle accident to the car using the virtual approach by the numerical simulation taking into account the variability of the human body. The…
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Reconstruction of Pediatric Occupant Kinematic Responses Using Finite Element Method in a Real-World Lateral Impact

Tianjin University of Science and Technology-Haiyan Li, Hongfei Zhao, Shihai Cui
Wayne State University-Xin Jin, Binhui Jiang, King H. Yang
Published 2017-03-28 by SAE International in United States
Computational human body models, especially detailed finite element models are suitable for investigation of human body kinematic responses and injury mechanism. A real-world lateral vehicle-tree impact accident was reconstructed by using finite element method according to the accident description in the CIREN database. At first, a baseline vehicle FE model was modified and validated according to the NCAP lateral impact test. The interaction between the car and the tree in the accident was simulated using LS-Dyna software. Parameters that affect the simulation results, such as the initial pre-crash speed, impact direction, and the initial impact location on the vehicle, were analyzed. The parameters were determined by matching the simulated vehicle body deformations and kinematics to the accident reports. The output speed and acceleration of rear seat from the vehicle-tree simulation will be directly applied to a simplified occupant-seat system using the CHARM-10 model to simulate the occupant-vehicle interaction in the next study. These results have shown that FE simulation can help in accident reconstruction and investigation of the pediatric injury in real-world impact accidents.
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