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Head Impact Protection using a Light Weight Composite Tubular Structure
Technical Paper
2000-01-0628
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
O-EA tubing is a composite structure, made of aluminum and paper, that is being used for energy absorption and crash injury mitigation in automotive head impact, side impact and knee bolster applications. This paper describes the component testing, material/geometry characterization and the evolution of a finite element model of the O-EA tubing through a 3-Stage methodology. In the first part of the paper, a description of the O-EA tubing construction and the manufacturing process is provided. Next, the material and geometry characterization of the constituent aluminum and paper layers, using static component tests and a finite element model, is described. A layered composite material model in conjunction with a shell element discretization of the geometry is identified to be the most suitable modeling approach. Subsequently, the dynamic impact tests and their corresponding simulations with the layered composite material model are compared and the model parameters are further refined on the basis of this comparison. Finally, an assessment of the in-vehicle head impact protection (per FMVSS 201U regulations), utilizing the tubing model evolved thus far, is described.
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Citation
Finch, E., Mani, A., and Kumar, K., "Head Impact Protection using a Light Weight Composite Tubular Structure," SAE Technical Paper 2000-01-0628, 2000, https://doi.org/10.4271/2000-01-0628.Also In
References
- LS-DYNA3D Users Manual Livermore Software Technology Corporation Livermore, CA 1999
- FMVSS Head Impact Protection Final Rule Federal Register 60 160 August 18 1995
- Rychlewski, Helen A. Miller, P. Michael II “A General Discussion on Interior Design Alternatives in Response to FMVSS 201U-Upper Interior Head Impact Protection,” SAE Technical Paper 982348 September 1998
- Everitt, L. Fialka, J. Kerman, M. Laabs, E. “A Comparative Study of Energy Absorbing Foams for Head Impact Energy Management,” SAE Technical Paper 980972 February 1998