Extreme cavity expansion in soft solids: Damage without fracture
Cavitation is a common damage mechanism in soft solids. Here, we study this using a phase separation technique in stretched, elastic solids to controllably nucleate and grow small cavities by several orders of magnitude. The ability to make stable cavities of different sizes, as well as the huge ran...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/125196 |
| _version_ | 1811089100872089600 |
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| author | Kim, Jin Young Liu, Zezhou Weon, Byung Mook Cohen, Tal Hui, Chung-Yuen Dufresne, Eric R. Style, Robert W. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Kim, Jin Young Liu, Zezhou Weon, Byung Mook Cohen, Tal Hui, Chung-Yuen Dufresne, Eric R. Style, Robert W. |
| author_sort | Kim, Jin Young |
| collection | MIT |
| description | Cavitation is a common damage mechanism in soft solids. Here, we study this using a phase separation technique in stretched, elastic solids to controllably nucleate and grow small cavities by several orders of magnitude. The ability to make stable cavities of different sizes, as well as the huge range of accessible strains, allows us to systematically study the early stages of cavity expansion. Cavities grow in a scale-free manner, accompanied by irreversible bond breakage that is distributed around the growing cavity rather than being localized to a crack tip. Furthermore, cavities appear to grow at constant driving pressure. This has strong analogies with the plasticity that occurs surrounding a growing void in ductile metals. In particular, we find that, although elastomers are normally considered as brittle materials, small-scale cavity expansion is more like a ductile process. Our results have broad implications for understanding and controlling failure in soft solids. |
| first_indexed | 2024-09-23T14:13:45Z |
| format | Article |
| id | mit-1721.1/125196 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:13:45Z |
| publishDate | 2020 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | mit-1721.1/1251962022-10-01T19:57:01Z Extreme cavity expansion in soft solids: Damage without fracture Kim, Jin Young Liu, Zezhou Weon, Byung Mook Cohen, Tal Hui, Chung-Yuen Dufresne, Eric R. Style, Robert W. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Cavitation is a common damage mechanism in soft solids. Here, we study this using a phase separation technique in stretched, elastic solids to controllably nucleate and grow small cavities by several orders of magnitude. The ability to make stable cavities of different sizes, as well as the huge range of accessible strains, allows us to systematically study the early stages of cavity expansion. Cavities grow in a scale-free manner, accompanied by irreversible bond breakage that is distributed around the growing cavity rather than being localized to a crack tip. Furthermore, cavities appear to grow at constant driving pressure. This has strong analogies with the plasticity that occurs surrounding a growing void in ductile metals. In particular, we find that, although elastomers are normally considered as brittle materials, small-scale cavity expansion is more like a ductile process. Our results have broad implications for understanding and controlling failure in soft solids. Swiss National Science foundation (grant 200021-172827). National Science Foundation (grant no. CMMI-1537087) MOTIE in Korea, under the Fostering Global Talents for Innovative Growth Program supervised by the KIAT (grant no. P0008746) 2020-05-12T20:54:37Z 2020-05-12T20:54:37Z 2020-03 2019-08 2020-05-11T19:13:52Z Article http://purl.org/eprint/type/JournalArticle 2375-2548 https://hdl.handle.net/1721.1/125196 Kim, Jin Young, et al. "Extreme cavity expansion in soft solids: Damage without fracture." Science Advances, 6, 13, (March 2020) eaaz0418. © 2020 The Author(s) en http://dx.doi.org/10.1126/sciadv.aaz0418 Science Advances Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Association for the Advancement of Science (AAAS) Science Advances |
| spellingShingle | Kim, Jin Young Liu, Zezhou Weon, Byung Mook Cohen, Tal Hui, Chung-Yuen Dufresne, Eric R. Style, Robert W. Extreme cavity expansion in soft solids: Damage without fracture |
| title | Extreme cavity expansion in soft solids: Damage without fracture |
| title_full | Extreme cavity expansion in soft solids: Damage without fracture |
| title_fullStr | Extreme cavity expansion in soft solids: Damage without fracture |
| title_full_unstemmed | Extreme cavity expansion in soft solids: Damage without fracture |
| title_short | Extreme cavity expansion in soft solids: Damage without fracture |
| title_sort | extreme cavity expansion in soft solids damage without fracture |
| url | https://hdl.handle.net/1721.1/125196 |
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