Sled System Requirements for the Analysis of Side Impact Thoracic Injury Criteria and Occupant Protection 2001-01-0721
This paper discusses struck-side occupant thoracic response to side-impact loading and the requirements of a sled system capable of reproducing the relevant motions of a laterally impacted vehicle. A simplified viscoelastic representation of a thorax is used to evaluate the effect of the door velocity-time profile on injury criteria and on the internal stress state of the thorax. Simulations using a prescribed door velocity-time profile (punch impact) are contrasted against simulations using a constant-velocity impact (Heidelberg-type impact). It is found that the stress distribution and magnitude within the thorax, in addition to the maximum thorax compression and viscous response, depend not only on the door-occupant closing velocity, but also on the shape of the door velocity-time profile throughout the time of contact with the occupant. A sled system capable of properly reproducing side-impact door and seat motion is described.
Citation: Kent, R., Crandall, J., Butcher, J., and Morris, R., "Sled System Requirements for the Analysis of Side Impact Thoracic Injury Criteria and Occupant Protection," SAE Technical Paper 2001-01-0721, 2001, https://doi.org/10.4271/2001-01-0721. Download Citation
Richard Kent, Jeff Crandall, Jon Butcher, Russell Morris
University of Virginia Automobile Safety Laboratory
SAE 2001 World Congress
Side Impact, Rear Impact, and Rollover-SP-1616, SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems-V110-6