The flexural mechanics of creased thin strips
Many structures in Nature and Engineering are dominated by the influence of folds. A very narrow fold is a crease, which may be treated with infinitesimal width for a relatively simple geometry; commensurately, it operates as a singular hinge line with torsional elastic properties. However, real cre...
| Main Authors: | , |
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| 格式: | Journal article |
| 語言: | English |
| 出版: |
Elsevier
2019
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| _version_ | 1826265692283863040 |
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| author | Walker, M Seffen, K |
| author_facet | Walker, M Seffen, K |
| author_sort | Walker, M |
| collection | OXFORD |
| description | Many structures in Nature and Engineering are dominated by the influence of folds. A very narrow fold is a crease, which may be treated with infinitesimal width for a relatively simple geometry; commensurately, it operates as a singular hinge line with torsional elastic properties. However, real creases have a finite width and thus continuous structural properties. We therefore consider the influence of the crease geometry on the large-displacement flexural behaviour of a thin creased strip. First, we model the crease as a shallow cylindrical segment connected to initially flat side panels. We develop a theoretical model of their coupled flexural behaviour and, by adjusting the relative panel size, we capture responses from a nearly singular crease up to a full tape-spring. Precise experiments show good agreement compared to predictions. |
| first_indexed | 2024-03-06T20:27:40Z |
| format | Journal article |
| id | oxford-uuid:2fee4ddf-f9fb-41e7-9d60-1de3593e5f98 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:27:40Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:2fee4ddf-f9fb-41e7-9d60-1de3593e5f982022-03-26T12:58:30ZThe flexural mechanics of creased thin stripsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2fee4ddf-f9fb-41e7-9d60-1de3593e5f98EnglishSymplectic Elements at OxfordElsevier2019Walker, MSeffen, KMany structures in Nature and Engineering are dominated by the influence of folds. A very narrow fold is a crease, which may be treated with infinitesimal width for a relatively simple geometry; commensurately, it operates as a singular hinge line with torsional elastic properties. However, real creases have a finite width and thus continuous structural properties. We therefore consider the influence of the crease geometry on the large-displacement flexural behaviour of a thin creased strip. First, we model the crease as a shallow cylindrical segment connected to initially flat side panels. We develop a theoretical model of their coupled flexural behaviour and, by adjusting the relative panel size, we capture responses from a nearly singular crease up to a full tape-spring. Precise experiments show good agreement compared to predictions. |
| spellingShingle | Walker, M Seffen, K The flexural mechanics of creased thin strips |
| title | The flexural mechanics of creased thin strips |
| title_full | The flexural mechanics of creased thin strips |
| title_fullStr | The flexural mechanics of creased thin strips |
| title_full_unstemmed | The flexural mechanics of creased thin strips |
| title_short | The flexural mechanics of creased thin strips |
| title_sort | flexural mechanics of creased thin strips |
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