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J Mech Behav Biomed Mater. 2013 Dec;28:340-53. doi: 10.1016/j.jmbbm.2013.08.010. Epub 2013 Aug 22.

Anisotropic composite human skull model and skull fracture validation against temporo-parietal skull fracture.

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  • 1Universit√© de Strasbourg ICube, UNISTRA-CNRS, 2 rue Boussingault, 67000 Alsace, Strasbourg, France.


A composite material model for skull, taking into account damage is implemented in the Strasbourg University finite element head model (SUFEHM) in order to enhance the existing skull mechanical constitutive law. The skull behavior is validated in terms of fracture patterns and contact forces by reconstructing 15 experimental cases. The new SUFEHM skull model is capable of reproducing skull fracture precisely. The composite skull model is validated not only for maximum forces, but also for lateral impact against actual force time curves from PMHS for the first time. Skull strain energy is found to be a pertinent parameter to predict the skull fracture and based on statistical (binary logistical regression) analysis it is observed that 50% risk of skull fracture occurred at skull strain energy of 544.0mJ.

© 2013 Elsevier Ltd. All rights reserved.


Finite element head modeling; Skull fracture tolerance limit; Temporo-parietal impact experiments

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