Intelligent 3D Car-Body Deformation Modeling

Abstract

Car body deformation modeling plays a very important role in crash accident analyses, as well as in safe car body design. The determination of the energy absorbed by the deformation and the corresponding Energy Equivalent Speed (EES) can be of key importance in both cases, however their precise determination is a very difficult task. Although, using the results of crash tests, intelligent methods offer an automatic way to model the deformation of the car- body as well as the crash process itself, based on which we can determine the absorbed energy, the before-crash speed of the car, and other important features of crashes. In this paper a modeling technique and an intelligent expert system are introduced which together are able to follow the deformation process of car- bodies in car crashes and to analyze the strength of the different parts without any human intervention, thus can significantly contribute to the improvement of the modeling, (automatic) design, and safety of car-bodies.