This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Formability and Performance of Steel-Plastic-Steel Laminated Sheet Materials
Technical Paper
2001-01-0079
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Steel-plastic-steel (SPS) laminated sheet materials can be utilized in certain automotive applications to achieve significant weight savings over “conventional” sheet steels. Three SPS laminates were produced using various combinations of light gage steel skins and polypropylene cores. Compared to homogeneous steels, density reductions of 35 to 46 percent were achieved. Benefiting from the ductility of their steel skins, SPS laminates can posses adequate formability for typical automotive sheet applications. Furthermore, the forming limit curves can be predicted using the work hardening exponent and thickness of the composite laminate. In three-point bending, the elastic stiffness of SPS laminates is nearly equivalent to that of monolithic steels of the same thickness. Thus, weight reductions similar to those of aluminum alloys can be achieved utilizing laminates in stiffness-critical applications. The quasi-static dent resistance of SPS laminates is improved by increasing the plastic core thickness, by increasing the steel skin strength, and by utilizing bake hardenable steel skins. These results provide an indication of the suitability of SPS laminates for potential use in automotive applications.
Recommended Content
Authors
Citation
Link, T., "Formability and Performance of Steel-Plastic-Steel Laminated Sheet Materials," SAE Technical Paper 2001-01-0079, 2001, https://doi.org/10.4271/2001-01-0079.Also In
References
- Miller W. K. “Metal-Plastic Laminates for Vehicle Weight Reduction,” SAE Paper No. 800077 1980
- DiCello J. A. “Steel-Polypropylene-Steel Laminate - A New Weight Reduction Material,” SAE Paper No. 800078 1980
- Endoh H. Ejima M. Saitoh T. Morita J. “Development of Vibration Damping Steel Sheet with Superior Service Performance,” Nippon Technical Report No. 44 January 1990
- Takechi H. “Recent Developments in Steel Products for Automotive Applications,” International Journal of Vehicle Design 11 1 1990
- UltraLight Steel Auto Body Final Report American Iron and Steel Institute Washington, D. C. May 1998
- Keeler S. P. Brazier W. G. “Relationship Between Laboratory Material Characterization and Press Shop Formability,” Proceedings of Microalloying 75 New York 1977
- Timoshenko S. Woinowsky-Krieger S. Theory of Plates and Shells 2nd McGraw-Hill New York 1959
- Metals Handbook Desk Edition 2nd ASM International Materials Park, OH 1998