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Development of Door Guard Beams Utilizing Ultra High Strength Steel
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English
Abstract
Door guard beams have been developed through the utilization of ultra high strength steel (tensile strength>100 kg/mm2).
At first, the sheet metal gauge was reduced in proportion to the strength of the ultra high strength without changing the shape of the beam section. This caused beam buckling and did not meet guard beam specifications.
Analyzing this phenomena in accordance with the buckling theory of thin plates, a design criteria that makes effective use of the advantages of ultra high strength was developed.
As a result, our newly designed small vehicle door guard beams are 20% lighter and 26% thinner than conventional ones. This makes it possible to reduce door thickness while increasing interior volume.
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Citation
Nousho, H., Sasakura, Y., Miyamoto, T., and Sakurai, H., "Development of Door Guard Beams Utilizing Ultra High Strength Steel," SAE Technical Paper 810031, 1981, https://doi.org/10.4271/810031.Also In
References
- Shimokawa et al. “Automotive Materials and Weight Reduction: Present and Future,” Journal of the Society of Automotive Engineers of Japan 33 8 1979 637
- Furubayashi et al. “Application of High Strength Steel Sheets to Automotive Components,” Nissan Technical Review No. 14 1979 31
- Shiokawa et al. “Thorough Production System of Bumpers by Roll Forming,” Nissan Technical Review No. 14 1979
- Sasaki et al. “Strengthening Side Door in Small Vehicles,” Journal of the Society of Automotive Engineers of Japan 31 3 1977 190
- Fine T.E. Dinda D. “Development of Lightweight-Door Intrusion Beams Utilizing An Ultra High Strength Steel,” SAE Paper 750222