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Stainless Steel In Structural Automotive Applications
Technical Paper
2002-01-2067
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
High strength characteristics, ease of fabrication, excellent fatigue resistance, and energy absorption capability are some of the properties held by stainless steel which enable us to meet the specific requirements of various passenger car structural members: these requirements include weight reduction, energy absorption, and pedestrian protection. The aim of this paper is to demonstrate the weight reduction potential of austenitic stainless steels i.e. Fe-Cr-Ni- (N) alloys in side members and bumper beam applications. The hydroforming technique combined with the high formability of austenitic stainless steel allows the optimisation of the side member cross section.
In the case of a crash this shape optimisation promotes the crushing of side members instead of buckling and therefore improves the energy absorption capability. This survey shows that the weight reduction is about 50% in the case of low speed crashes.
According to pedestrian protection requirements a weight reduction of the bumper beam of the order of 40% can be achieved by both redesigning and using the right grade of stainless steel in the right cold worked condition.
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Authors
Citation
Cunat, P., "Stainless Steel In Structural Automotive Applications," SAE Technical Paper 2002-01-2067, 2002, https://doi.org/10.4271/2002-01-2067.Also In
References
- CD-ROM Stainless Steel for Structural Automotive Applications-Properties and Case Studies
- Cunat (P.-J.) Stainless Steel Characteristics for Structural Automotive Applications 33 rd ISATA Conference Dublin 25th-29th September 2000
- Cunat (P.-J.) Working Stainless Steel SIRPE Paris 1998
- FKA report 07090: Conceptual Design Study “Stainless Steel Body Structure” November 2001