Abstract
The head trauma is the main criteria used to evaluate the vehicle safety level. The criteria concern the brain injuries in case of exposure to high accelerations that are associated with impact events. In this paper we shall present a 3D model of the human head. First, the computational model of the head is built. The method used to generate the all hexahedral finite elements model of the structure consists in a number of procedures used for reading the geometrical model, definition of the intersection planes and intersection contours, definition of the contour grid based quadrilateral mesh, definition of the section mesh, definition of the hexahedral finite elements and export of the numerical model. These procedures were implemented in a custom written code using Matlab. The model that is prepared and used to study the brain motion during the impact. The input data are collected from impact simulations using full scale dummy models or multibody models. The results are compared and the performances of the multibody model evaluated.
Keywords: human head, finite elements, model generation, validation, impact