Numerical Modeling of Brain Dynamics in Traumatic Situations - Impulsive Translations
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چکیده
We numerically model the brain dynamics during and after impulsive head translations using linear Partial Differential Equations (PDEs) describing viscoelastic solids and a nonlinear generalization of these PDEs describing incompressible, viscoelastic fluids. The brain matter motion and the sensitivity of the solutions with respect to the skull’s geometry differ substantially in the two cases. In particular, the oscillatory rotational flows, which we discovered to appear in the matter after the translations stop, are quite distinct. The significance of the results for understanding the mechanisms of Closed Head Injuries (CHI) is discussed.
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تاریخ انتشار 2005