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Evaluation of Collapse Absorption Capability for Hydroformed Tubes
Technical Paper
2002-01-2130
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The tube hydroforming technology (THF) has been extensively used as auto-body structural members such as engine cradle, frame rail etc. in order to meet the urgent need of vehicle weight and cost reduction as well as high quality. In this paper we experimentally investigate the mechanical properties for hydroformed tubes with various bulging strains under the plane strain mode. Axial compression tests for hydroformed tubes are performed to investigate the collapse load and collapse absorption capacity through the collapse load-displacement curves. Moreover the collapse absorption capacities are compared and discussed between as-received, hydroformed, and press formed tubes. Results demonstrate that the hydroformed tubes show higher collapse absorption capability in comparison with the as-received tube and the press formed tube, because of its high yield strength due to strain hardening.
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Authors
Citation
Kim, Y., Son, H., Park, C., Park, K. et al., "Evaluation of Collapse Absorption Capability for Hydroformed Tubes," SAE Technical Paper 2002-01-2130, 2002, https://doi.org/10.4271/2002-01-2130.Also In
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