Reversible patterning of spherical shells through constrained buckling
Recent advances in active soft structures envision the large deformations resulting from mechanical instabilities as routes for functional shape morphing. Numerous such examples exist for filamentary and plate systems. However, examples with double-curved shells are rarer, with progress hampered by...
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| Format: | Article |
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American Physical Society (APS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/117421 https://orcid.org/0000-0002-8682-9535 https://orcid.org/0000-0001-8569-5400 https://orcid.org/0000-0003-3984-828X |
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| author | Marthelot, Joel Brun, P.-T. Lopez Jimenez, Francisco Reis, Pedro Miguel |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Marthelot, Joel Brun, P.-T. Lopez Jimenez, Francisco Reis, Pedro Miguel |
| author_sort | Marthelot, Joel |
| collection | MIT |
| description | Recent advances in active soft structures envision the large deformations resulting from mechanical instabilities as routes for functional shape morphing. Numerous such examples exist for filamentary and plate systems. However, examples with double-curved shells are rarer, with progress hampered by challenges in fabrication and the complexities involved in analyzing their underlying geometrical nonlinearities. We show that on-demand patterning of hemispherical shells can be achieved through constrained buckling. Their postbuckling response is stabilized by an inner rigid mandrel. Through a combination of experiments, simulations, and scaling analyses, our investigation focuses on the nucleation and evolution of the buckling patterns into a reticulated network of sharp ridges. The geometry of the system, namely, the shell radius and the gap between the shell and the mandrel, is found to be the primary ingredient to set the surface morphology. This prominence of geometry suggests a robust, scalable, and tunable mechanism for reversible shape morphing of elastic shells. |
| first_indexed | 2024-09-23T12:49:46Z |
| format | Article |
| id | mit-1721.1/117421 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T12:49:46Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1174212022-10-01T11:22:10Z Reversible patterning of spherical shells through constrained buckling Marthelot, Joel Brun, P.-T. Lopez Jimenez, Francisco Reis, Pedro Miguel Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Massachusetts Institute of Technology. Department of Mathematics Massachusetts Institute of Technology. Department of Mechanical Engineering Marthelot, Joel Brun, P.-T. Lopez Jimenez, Francisco Reis, Pedro Miguel Recent advances in active soft structures envision the large deformations resulting from mechanical instabilities as routes for functional shape morphing. Numerous such examples exist for filamentary and plate systems. However, examples with double-curved shells are rarer, with progress hampered by challenges in fabrication and the complexities involved in analyzing their underlying geometrical nonlinearities. We show that on-demand patterning of hemispherical shells can be achieved through constrained buckling. Their postbuckling response is stabilized by an inner rigid mandrel. Through a combination of experiments, simulations, and scaling analyses, our investigation focuses on the nucleation and evolution of the buckling patterns into a reticulated network of sharp ridges. The geometry of the system, namely, the shell radius and the gap between the shell and the mandrel, is found to be the primary ingredient to set the surface morphology. This prominence of geometry suggests a robust, scalable, and tunable mechanism for reversible shape morphing of elastic shells. National Science Foundation (U.S.) (Grant CMMI-1351449) 2018-08-20T17:43:26Z 2018-08-20T17:43:26Z 2017-07 2017-01 2018-08-20T17:01:12Z Article http://purl.org/eprint/type/JournalArticle 2475-9953 http://hdl.handle.net/1721.1/117421 Marthelot, J. et al. “Reversible Patterning of Spherical Shells through Constrained Buckling.” Physical Review Materials 1, 2 (July 2017): 025601 © 2017 American Physical Society https://orcid.org/0000-0002-8682-9535 https://orcid.org/0000-0001-8569-5400 https://orcid.org/0000-0003-3984-828X http://dx.doi.org/10.1103/PHYSREVMATERIALS.1.025601 Physical Review Materials Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) PNAS |
| spellingShingle | Marthelot, Joel Brun, P.-T. Lopez Jimenez, Francisco Reis, Pedro Miguel Reversible patterning of spherical shells through constrained buckling |
| title | Reversible patterning of spherical shells through constrained buckling |
| title_full | Reversible patterning of spherical shells through constrained buckling |
| title_fullStr | Reversible patterning of spherical shells through constrained buckling |
| title_full_unstemmed | Reversible patterning of spherical shells through constrained buckling |
| title_short | Reversible patterning of spherical shells through constrained buckling |
| title_sort | reversible patterning of spherical shells through constrained buckling |
| url | http://hdl.handle.net/1721.1/117421 https://orcid.org/0000-0002-8682-9535 https://orcid.org/0000-0001-8569-5400 https://orcid.org/0000-0003-3984-828X |
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