Energy absorption of axially compressed thin-walled square tubes with patterns
The paper suggests the introduction of patterns to the surface of conventional thin-walled square tubes to improve the energy absorption capacity under axial compressive loads. A quasi-static axial crushing analysis has been conducted numerically by the nonlinear explicit finite element code LS-DYNA...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1797051492701569024 |
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| author | Zhang, X Cheng, G You, Z Zhang, H |
| author_facet | Zhang, X Cheng, G You, Z Zhang, H |
| author_sort | Zhang, X |
| collection | OXFORD |
| description | The paper suggests the introduction of patterns to the surface of conventional thin-walled square tubes to improve the energy absorption capacity under axial compressive loads. A quasi-static axial crushing analysis has been conducted numerically by the nonlinear explicit finite element code LS-DYNA. Two types of patterns constructed using the basic pyramid elements were introduced. Type A pattern was aimed at triggering the extensional mode for relatively thin square tubes whereas type B pattern was intended to develop new collapse mode capable of absorbing more energy during collapse. A total of 30 tubes with a length of 120 mm, thickness 1.2 mm and widths of 40 or 60 mm were simulated. Numerical results showed that all tubes with type A patterns developed the extensional collapse mode instead of the symmetric collapse mode and absorbed about 15-32.5% more energy than conventional thin-walled square tubes with a mass increase less than 5%. Meanwhile, a new collapse mode named octagonal collapse mode was observed for tubes with type B pattern and the energy absorption of tubes developing this mode increased by 54-93% compared with the conventional tube. The influence of various configurations of the patterns on the deformation and energy absorption of the tubes was also discussed. The paper opens up a new avenue in design of high energy absorption components. © 2007 Elsevier Ltd. All rights reserved. |
| first_indexed | 2024-03-06T18:20:14Z |
| format | Journal article |
| id | oxford-uuid:0606a36b-24e2-432f-b57f-1b5e8893ca9c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:20:14Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:0606a36b-24e2-432f-b57f-1b5e8893ca9c2022-03-26T09:00:25ZEnergy absorption of axially compressed thin-walled square tubes with patternsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0606a36b-24e2-432f-b57f-1b5e8893ca9cEnglishSymplectic Elements at Oxford2007Zhang, XCheng, GYou, ZZhang, HThe paper suggests the introduction of patterns to the surface of conventional thin-walled square tubes to improve the energy absorption capacity under axial compressive loads. A quasi-static axial crushing analysis has been conducted numerically by the nonlinear explicit finite element code LS-DYNA. Two types of patterns constructed using the basic pyramid elements were introduced. Type A pattern was aimed at triggering the extensional mode for relatively thin square tubes whereas type B pattern was intended to develop new collapse mode capable of absorbing more energy during collapse. A total of 30 tubes with a length of 120 mm, thickness 1.2 mm and widths of 40 or 60 mm were simulated. Numerical results showed that all tubes with type A patterns developed the extensional collapse mode instead of the symmetric collapse mode and absorbed about 15-32.5% more energy than conventional thin-walled square tubes with a mass increase less than 5%. Meanwhile, a new collapse mode named octagonal collapse mode was observed for tubes with type B pattern and the energy absorption of tubes developing this mode increased by 54-93% compared with the conventional tube. The influence of various configurations of the patterns on the deformation and energy absorption of the tubes was also discussed. The paper opens up a new avenue in design of high energy absorption components. © 2007 Elsevier Ltd. All rights reserved. |
| spellingShingle | Zhang, X Cheng, G You, Z Zhang, H Energy absorption of axially compressed thin-walled square tubes with patterns |
| title | Energy absorption of axially compressed thin-walled square tubes with patterns |
| title_full | Energy absorption of axially compressed thin-walled square tubes with patterns |
| title_fullStr | Energy absorption of axially compressed thin-walled square tubes with patterns |
| title_full_unstemmed | Energy absorption of axially compressed thin-walled square tubes with patterns |
| title_short | Energy absorption of axially compressed thin-walled square tubes with patterns |
| title_sort | energy absorption of axially compressed thin walled square tubes with patterns |
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