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Finite-element simulation of firearm injury to the human cranium

Mota, A. and Klug, W. S. and Ortiz, M. and Pandolfi, A. (2003) Finite-element simulation of firearm injury to the human cranium. Computational Mechanics, 31 (1-2). pp. 115-121. ISSN 0178-7675. doi:10.1007/s00466-002-0398-8.

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An advanced physics-based simulation of firearms injury to the human cranium is presented, modeling by finite elements the collision of a firearm projectile into a human parietal bone. The space-discretized equations of motion are explicitly integrated in time with Newmark's time-stepping algorithm. The impact of the projectile on the skull, as well as the collisions between flying fragments, are controlled through a nonsmooth contact algorithm. Cohesive theories of fracture, in conjunction with adaptive remeshing, control the nucleation and the propagation of fractures. The progressive opening of fracture surfaces is governed by a thermodynamically irreversible cohesive law embedded into cohesive-interface elements. Numerical results compare well with forensic data of actual firearm wounds to human crania.

Item Type:Article
Related URLs:
URLURL TypeDescription ReadCube access
Ortiz, M.0000-0001-5877-4824
Pandolfi, A.0000-0002-7084-7456
Additional Information:© Springer-Verlag Berlin Heidelberg 2003. Dedicated to the memory of Prof. Mike Crisfield, for his cheerfulness and cooperation as a colleague and friend over many years. The authors would like to thank the W. M. Keck Foundation for their financial support for this research through the Keck Discovery Fund. Photographs in Figs. 1 and 2 provided by Valeri Craigle, Eccles Health Sciences Library, University of Utah, Copyright © 2000.
Subject Keywords:Fracture, Fragmentation, Cohesive elements, Contact, Ballistic penetration, Firearm injury, Human cranium
Issue or Number:1-2
Record Number:CaltechAUTHORS:20171128-115541004
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Official Citation:Mota, A., Klug, W., Ortiz, M. et al. Computational Mechanics (2003) 31: 115.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83531
Deposited By: Lydia Suarez
Deposited On:28 Nov 2017 20:01
Last Modified:15 Nov 2021 20:12

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