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Bending Collapse Behavior of Tubular Structure under Impact

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Abstract:

Three point bending test of aluminum tubular structure with hat cross-section was carried out under impact condition. The structures which were strengthened with carbon fiber reinforced thermoplastic sheet attached to hat-top or hat-side were also tested. When the structure made with only aluminum was bent, one-lobe deformation mode arose in most cases, where the buckling lobe was formed at center exhibiting very low deformation resistance. This mode was found to be attributed to the low friction at central anvil by conducting the numerical simulation. The energy absorption performance was evaluated for a variety of structures. When the sheet attachment was applied for the structure with one-lobe deformation mode, the absorbed energy was improved drastically.

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Periodical:

Materials Science Forum (Volume 910)

Pages:

111-116

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.910.111

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Online since:

January 2018

Authors:

Minoru Yamashita*, Naoki Kunieda, Makoto Nikawa

Keywords:

Aluminium Structure, Attachment, Hat Cross-Section, Impact Bending

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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