Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling
We propose and investigate a minimal mechanism that makes use of differential swelling to modify the critical buckling conditions of elastic bilayer shells, as measured by the knockdown factor. Our shells contain an engineered defect at the north pole and are made of two layers of different crosslin...
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Language: | English |
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Royal Society of Chemistry
2019
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/99535 https://doi.org/10.1039/C9SM00901A |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/99535 2023-05-15T17:39:50+02:00 Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling LEE, ANNA Yan, Dong Pezzulla, Matteo Holmes, Douglas P. REIS, PEDRO M. LEE, ANNA 2019-06 https://oasis.postech.ac.kr/handle/2014.oak/99535 https://doi.org/10.1039/C9SM00901A English eng Royal Society of Chemistry Soft Matter Chemistry, Physical Materials Science, Multidisciplinary Physics, Multidisciplinary Polymer Science 1744-683X https://oasis.postech.ac.kr/handle/2014.oak/99535 doi:10.1039/C9SM00901A 38272 Soft Matter, v.15, no.30, pp.6134 - 6144 000477986500008 2-s2.0-85070076188 Article ART 2019 ftponangunivst https://doi.org/10.1039/C9SM00901A 2023-03-10T01:32:24Z We propose and investigate a minimal mechanism that makes use of differential swelling to modify the critical buckling conditions of elastic bilayer shells, as measured by the knockdown factor. Our shells contain an engineered defect at the north pole and are made of two layers of different crosslinked polymers that exchange free molecular chains. Depending on the size of the defect and the extent of swelling, we can observe either a decreasing or increasing knockdown factor. FEM simulations are performed using a reduced model for the swelling process to aid us in rationalizing the underlying mechanism, providing a qualitative agreement with experiments. We believe that the working principle of our mechanism can be extended to bimetallic shells undergoing variations in temperature and to shells made of pH-responsive gels, where the change in knockdown factor could be changed dynamically. 1 1 N scie scopus Article in Journal/Newspaper North Pole Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) North Pole Soft Matter 15 30 6134 6144 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
description |
We propose and investigate a minimal mechanism that makes use of differential swelling to modify the critical buckling conditions of elastic bilayer shells, as measured by the knockdown factor. Our shells contain an engineered defect at the north pole and are made of two layers of different crosslinked polymers that exchange free molecular chains. Depending on the size of the defect and the extent of swelling, we can observe either a decreasing or increasing knockdown factor. FEM simulations are performed using a reduced model for the swelling process to aid us in rationalizing the underlying mechanism, providing a qualitative agreement with experiments. We believe that the working principle of our mechanism can be extended to bimetallic shells undergoing variations in temperature and to shells made of pH-responsive gels, where the change in knockdown factor could be changed dynamically. 1 1 N scie scopus |
author2 |
LEE, ANNA |
format |
Article in Journal/Newspaper |
author |
LEE, ANNA Yan, Dong Pezzulla, Matteo Holmes, Douglas P. REIS, PEDRO M. |
spellingShingle |
LEE, ANNA Yan, Dong Pezzulla, Matteo Holmes, Douglas P. REIS, PEDRO M. Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
author_facet |
LEE, ANNA Yan, Dong Pezzulla, Matteo Holmes, Douglas P. REIS, PEDRO M. |
author_sort |
LEE, ANNA |
title |
Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
title_short |
Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
title_full |
Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
title_fullStr |
Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
title_full_unstemmed |
Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
title_sort |
evolution of critical buckling conditions in imperfect bilayer shells through residual swelling |
publisher |
Royal Society of Chemistry |
publishDate |
2019 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/99535 https://doi.org/10.1039/C9SM00901A |
geographic |
North Pole |
geographic_facet |
North Pole |
genre |
North Pole |
genre_facet |
North Pole |
op_relation |
Soft Matter Chemistry, Physical Materials Science, Multidisciplinary Physics, Multidisciplinary Polymer Science 1744-683X https://oasis.postech.ac.kr/handle/2014.oak/99535 doi:10.1039/C9SM00901A 38272 Soft Matter, v.15, no.30, pp.6134 - 6144 000477986500008 2-s2.0-85070076188 |
op_doi |
https://doi.org/10.1039/C9SM00901A |
container_title |
Soft Matter |
container_volume |
15 |
container_issue |
30 |
container_start_page |
6134 |
op_container_end_page |
6144 |
_version_ |
1766140601236979712 |