Numerical Simulation of crashworthiness of a saloon car

Authors

  • Ashwani Kumar Singh , Vijay Gautam , Devendra Kumar

Abstract

Car crash test analysis is widely performed to determine the level of safety provided in a car to
its occupants. This paper focuses on numerical analysis on crashworthiness due to different materials
selected for the skin panels and frame. There are several factors which contribute to the safety of passengers,
specially front seat occupants based on which the star ratings are provided to every car by the standard
testing organizations. The present study involves all the standards as set by NCAP and also uses the model
of Toyota Yaris with the conditions and specifications assigned to it. The CAD model was used on FE
software LS Dyna for testing the crashworthiness. The new material models were used on the software for
Interstitial Free steel for the skin material and Advanced High Strength Steel(AHSS) for the frame. The
tensile testing results were obtained by experiments which were helpful in defining the Load Curves for the
said materials. The load curves were used in the software simulation for definition of material deformation
in its plastic state. The simulation in full frontal orientation which is one of the standard tests involved in
Crash analysis was performed. For the test, crash pulse, energy absorption by material, velocity were
observed for the seat movement and the comparisons were drawn

Published

2020-01-31

Issue

Section

Articles