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A Study on Head Injury Risk in Car-to-Pedestrian Collisions Using FE-Model
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- Chen, Yong (author)
- Hunan University
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- Yang, Jikuang, 1948 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xu, Wei (author)
- Hunan University
- (creator_code:org_t)
- 2009-06-09
- 2009
- English.
- In: SAE Technical Papers. - 400 Commonwealth Drive, Warrendale, PA, United States : SAE International. - 0148-7191 .- 2688-3627. ; , s. 1-9
- Conference paper (peer-reviewed)
Abstract
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- Head injury is quite frequently occurred in car-to-pedestrian collisions, which often places an enormous burden to victims and society. To address head protection and understand the head injury mechanisms, in-depth accident investigation and accident reconstructions were conducted. A total of 6 passenger-cars to adult-pedestrian accidents were sampled from the in-depth accident investigation in Changsha China. Accidents were firstly reconstructed by using Multi-bodies (MBS) pedestrian and car models. The head impact conditions such as head impact velocity; position and orientation were calculated from MBS reconstructions, which were then employed to set the initial conditions in the simulation of a head model striking a windshield using Finite Element (FE) head and windshield models. The intracranial pressure and stress distribution of the FE head model were calculated and correlated with the injury outcomes. Reconstruction results show that the coup/contre-coup pressure, Von Mises stress and shear stress are important physical parameters to predict the brain injury risks.
Subject headings
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Mathematics
- and Computational Ma ...
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Biophysics
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
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