МЕТОДИКА РАСЧЕТА ПРОЦЕССА ДЕФОРМИРОВАНИЯ ЛОНЖЕРОНА ОСНОВАНИЯ КУЗОВА АВТОМОБИЛЯ ПРИ БОКОВОМ СТОЛКНОВЕНИИ
ТРАНСПОРТНЫЕ СИСТЕМЫ
Abstract
A calculation model is developed by the finite element method for the side impact crash process of the bottom girder of the car body. The presented calculation method allows to investigate the deformation process of the complex cross sectional thin-walled beam in different cases of impact. A non-linear deformation model for the body section is developed by using Shell 163 finite elements in LS-DYNA, allowing to determine the deformed view of the structure after the impact, the distributions of stresses and strains in the impact process. The distributions of energy components in dynamic loading are obtained allowing to evaluate the
energy content of the girder in modeling the impact with specified parameters. By changing the geometric parameters and using different materials for the girder’s components, the structure’s energy content is estimated.