Considerations Concerning Vehicle Collisions Through Simplified Calculations of the Impact Forces

Paper #:
  • 962324

Published:
  • 1996-10-01
Citation:
Onusic, H., Campos, J., and dos Santos, P., "Considerations Concerning Vehicle Collisions Through Simplified Calculations of the Impact Forces," SAE Technical Paper 962324, 1996, https://doi.org/10.4271/962324.
Pages:
13
Abstract:
Vehicle Safety is very attractive, concerning active or passive safety. The collisions are intensively studied including deformations, kinematics, protections, devices and injuries. By the way, today we have a lot of computer programs trying to simulate these crash-tests. But, we can have an idea about the magnitude of the impact forces of a vehicle against a rigid wall starting from known physical concepts and simplified approximations. This is one of the purposes of this work.The classic problem of projectile impacts against a rigid wall and the example of an aircraft impact against a nuclear power plant are used to consider the models applied to vehicles.We consider the disacceleration of a material point and also the vehicle as an extense object.Real data are used to quantify the achieved expressions. We compare and discuss the magnitude of the forces, for instance, between a passenger car and a commercial vehicle. We use the results to discuss the qualification of seat anchorage, some parameters concerning deformation and aspects of frontal impacts regarding passenger cars and commercial vehicles.
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