High Frequency Modelling Of Porcine Brain Tissue
Author(s)
S. Nicolle, R. Willinger & L. Mourad
Abstract
High frequency modelling of porcine brain
tissue
S. Nicolle, R. Willinger & L. Mourad
IMFS - CNRS 7507, Strasbourg University, France
Abstract
The objective of this study is to contribute to the improvement of FE head
models used to predict the mechanical response of brain during head impact. The
topic of that research is the mechanical characterization of high frequency
behaviour of porcine brain tissue from own experimental results obtained in
small deformation, oscillatory shear experiments. These results are the first
experimental data corresponding to a large frequency range associated with nonpenetrating
ballistic and accidental impacts or inertial loadings. Cylindrical
samples of white matter of adult pigs (diameter: 10 mm, thickness: 150 - 250
pm) are harvested, conserved in physiological solution at 6OC and tested within
the day post-mortem. The complex shear modulus of the samples are measured
in a custom-designed oscillatory shear testing device at shear strain amplitudes
of 0.002 %
Keywords
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