Head Injury in Facial Impact—A Finite Element Analysis of Helmet Chin Bar Performance

[+] Author and Article Information
Chih-Han Chang, Li-Tung Chang, Guan-Liang Chang

Institute of Biomedical Engineering, National Chung Kung University, Tainan, Taiwan

Shyh-Chour Huang

Department of Mechanical Engineering, National Kaohsiung Institute of Technology, Kaohsiung, Taiwan

Chiou-Hua Wang

Institute of Biomedical Engineering, National Chung Kung University, Tainan, Taiwan

J Biomech Eng 122(6), 640-646 (Jul 10, 2000) (7 pages) doi:10.1115/1.1318905 History: Received April 28, 1999; Revised July 10, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Progression of deformation from the transverse view; HDPE shell with a liner density of 44 kg/m3
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Acceleration-time curves of the headform with different shell materials at an impact energy of 88 J (liner density 44 kg/m3)
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Main components of chin bar
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(a) Experimental setup of Snell and British Standard tests; (b) experimental setup of helmet drop test
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Finite element mesh: (a) cross-sectional view, (b) reference to top and lateral portions
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Mechanical simulations of expanded polystyrene foam liners with three different densities based on Yettram’s impact experiment: (a) 24, (b) 44, and (c) 57 kg/m3
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Acceleration-time curves of the headform in the drop test at an impact energy of 88 J
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Acceleration-time curves of the headform with different polystyrene liner densities at an impact energy of 88 J (HDPE shell)
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Progression of deformation from the transverse view; GRP shell with a liner density of 44 kg/m3



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