Numerical simulation can be very useful in the study of side impact both for a better understanding of the structural behavior and to provide more representative human body characterisations. In the first part of this paper, a complete structural model using the Finite-Element method and running on a supercomputer simulates the impact of a deformable barrier (C.E.V.E.) on a vehicle. This modelisation takes into account the very complex deformations and interactions inside the struture and between the car and the barrier. The comparison with the experiment is very satisfactory and the model can be considered as validated. As for the modelisation of the occupant, the recent evaluations of SID and EUROSID dummies in lateral impact showed their poor biofidelity and also their important differences of conception as regards human being. For those reasons, it is necessary to have recourse directly to the human being. A simple modelisation was developed by the LPB-APR on the basis of cadaver tests and integrated in the model of structural deformation described above. Then, the data provided by this model were used with Prakimod to simulate the behaviour of the human being under lateral impact with a given structural deformation. (A) For the covering abstract of the conference, see IRRD 837684.
Abstract