SAE technical papers on CD-ROM/SAE technical paper series · 1991 · 12 citations · 12 references
EngineeringAutomotive EngineeringMechanical EngineeringApplied MechanicsComputational MechanicsFinite Element AnalysisCrash SimulationFinite Element DynamicsImpact BehaviorImpact DynamicsImpact MechanicsVehicle ModelingCrash AnalysisFinite Element Impact SimulationLarge Deformation MechanicsLarge Deformation ModelingLarge-deformation Structural ResponseOccupant Impact ResponseVehicle Interior ContactViscoelastic Material Modeling
Current mathematical simulation of occupant impact and interactions with the vehicle interior, in the event of crash, is based on lumped mass- spring formulations. These models lack the fidelity to simulate structural deformations and to capture the detailed contact and interactions between the occupant and the impact targets. As a first step in improving the technology, the authors have developed a detailed three-dimensional finite element (FE) model which simulated thoracic impact on the steering wheel. The model consisted of Hybrid III thorax, lumbar spine and self-aligning steering wheel. The model was developed using DYNA3D and represented the dynamic large deformation response of the system by a combination of solid, beam and shell elements. Both elastic and viscoelastic material properties of various system components were experimentally identified and implemented in the model. For the covering abstract see IRRD 864472.
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