Thin-walled tubes subjected to axial crushing have been extensively used as energy absorbers in transportation system. It has been known for some time that inversion of a circular tube can have very high energy absorption capability and a stable reaction force. However, its inversing mechanism is rather unstable, and it requires a lubricated contact surface, both of which largely hinder its wide application. This paper proposes to use corrugated tube for inversion, which provides a stable inversing mechanism and no requirement for lubricated contact. Furthermore to the improvement of inversing stability, a comparison between inversion of corrugated tube and buckling of circular tube has been done. It shows that the inversion of the corrugated tube has longer stroke, higher energy absorption capability and better load uniformity than that of buckling of circular tube.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5710-6
PROCEEDINGS PAPER
Corrugated Tube Inversion for Energy Absorption
Yang Li
University of Oxford, Oxford, UK
Zhong You
University of Oxford, Oxford, UK
Paper No:
DETC2015-47135, V003T01A003; 9 pages
Published Online:
January 19, 2016
Citation
Li, Y, & You, Z. "Corrugated Tube Inversion for Energy Absorption." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 3: 17th International Conference on Advanced Vehicle Technologies; 12th International Conference on Design Education; 8th Frontiers in Biomedical Devices. Boston, Massachusetts, USA. August 2–5, 2015. V003T01A003. ASME. https://doi.org/10.1115/DETC2015-47135
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