Research on Reconstruction of Frontal Collision Accidents of Two Cars Based on the Combination of PC-crash and Finite Element Method

Abstract

In this paper, PC-crash and finite element method are combined to analyze a typical frontal collision accident of two cars, determine the relationship between the overlap rate of the two workshops and the damaged parts, so as to obtain the force transmission path in the collision; meanwhile, analyze the linear relationship between the difference between the absolute speeds of the two cars and the deformation of the anti-collision beam at the main energy-absorbing part.Through the comparison with the actual accident measurement, the original parameters before the collision in the PC-crash are determined, and the parameters are used as the boundary conditions of the finite element analysis.Through simulation and calculation, the changes of speed, acceleration, energy and force of the two vehicles at the moment of collision, as well as the deformation and damage of the main components of the vehicle, are of great significance for the analysis and investigation of traffic accidents.