Material Modeling Effects on Impact Deformation of Ultralight Steel Auto Body
2000-01-2715
10/03/2000
- Event
- Content
- This paper describes the results of the computational analysis of UltraLight Steel Auto Body (ULSAB) crash simulations that were performed using advanced material modeling techniques. The effects of strain-rate sensitivity on a high strength steel intensive vehicle was analyzed. Frontal and frontal offset crash scenarios were used in a finite element parametric study of the ULSAB body structure. Comparisons are made between the crash results using the piece-wise-linear isotropic plasticity strain-rate dependent material model, and the isotropic plasticity material model based on quasi-static properties. The simulation results show the importance of advanced material modeling techniques for vehicle crash simulations due to strain-rate sensitivity and rapid hardening characteristics of advanced high strength steels. Material substitution was investigated for the main frontal crush structure using the material of similar yield stress a significantly different strain-rate and hardening characteristics.
- Pages
- 12
- Citation
- Simunovic, S., Shaw, J., and Aramayo, G., "Material Modeling Effects on Impact Deformation of Ultralight Steel Auto Body," SAE Technical Paper 2000-01-2715, 2000, https://doi.org/10.4271/2000-01-2715.