Rear Full Overlap High Speed Car-to-Car Impact Simulation

Paper #:
  • 951085

Published:
  • 1995-04-01
Citation:
Syamal, P. and Bhatti, M., "Rear Full Overlap High Speed Car-to-Car Impact Simulation," SAE Technical Paper 951085, 1995, https://doi.org/10.4271/951085.
Pages:
9
Abstract:
A rear full overlap car-to-car high speed impact simulation using the DYNA3D Finite Element Software was performed to examine the crush mode for rear structure of a vehicle and to observe the effect of rear bumper system in order to maintain the fuel system integrity.The study was conducted first for two different bumper system configurations, namely: (1) validating the model for struck vehicle with steel rear bumper system, (2) simulating rear end collision with composite rear bumper system attached to the rear rails of struck vehicle. Later a third simulation of the model was conducted with a viable design modification to the composite bumper system for improved crashworthiness.It was identified that a more comprehensive FEA model of the bullet car including front end structure, powertrain components, cooling system and other components which constitute the load paths should be incorporated in the analysis to obtain more meaningful correlation and crashworthiness prediction.
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