Converging-diverging shock-driven instabilities along soft hydrogel surfaces
Intense surface eruptions are observed along the curved surface of a confined cylindrical film of hydrogel subject to laser-induced converging-diverging shock loading. Detailed numerical simulations are used to identify the dominant mechanisms causing mechanical instability. The mechanisms that prod...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2023
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| Online Access: | https://hdl.handle.net/1721.1/153126 |
| _version_ | 1826189217861992448 |
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| author | Pickard, Daniel Martynowych, Dmitro Lem, Jet Koshakji, Anwar Lin, Shaoting Zhao, Xuanhe Nelson, Keith Giovanardi, Bianca Radovitzky, Raul |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Pickard, Daniel Martynowych, Dmitro Lem, Jet Koshakji, Anwar Lin, Shaoting Zhao, Xuanhe Nelson, Keith Giovanardi, Bianca Radovitzky, Raul |
| author_sort | Pickard, Daniel |
| collection | MIT |
| description | Intense surface eruptions are observed along the curved surface of a confined cylindrical film of hydrogel subject to laser-induced converging-diverging shock loading. Detailed numerical simulations are used to identify the dominant mechanisms causing mechanical instability. The mechanisms that produce surface instability are found to be fundamentally different from both acoustic parametric instability and shock-driven Richtmyer-Meshkov instability. The time scale of observed and simulated eruption formation is much larger than that of a single shock reflection, in stark contrast to previously studied shock-driven instabilities. Moreover, surface undulations are only found along external, as opposed to internal, soft solid boundaries. Specifically, classic bubble surface instability mechanisms do not occur in our experiments and here we comment only on the new surface undulations found along the outer boundary of solid hydrogel cylinders. Our findings indicate a new class of impulsively excited surface instability that is driven by cycles of internal shock reflections. |
| first_indexed | 2024-09-23T08:11:22Z |
| format | Article |
| id | mit-1721.1/153126 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:11:22Z |
| publishDate | 2023 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1531262024-01-11T19:35:14Z Converging-diverging shock-driven instabilities along soft hydrogel surfaces Pickard, Daniel Martynowych, Dmitro Lem, Jet Koshakji, Anwar Lin, Shaoting Zhao, Xuanhe Nelson, Keith Giovanardi, Bianca Radovitzky, Raul Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Mechanical Engineering Intense surface eruptions are observed along the curved surface of a confined cylindrical film of hydrogel subject to laser-induced converging-diverging shock loading. Detailed numerical simulations are used to identify the dominant mechanisms causing mechanical instability. The mechanisms that produce surface instability are found to be fundamentally different from both acoustic parametric instability and shock-driven Richtmyer-Meshkov instability. The time scale of observed and simulated eruption formation is much larger than that of a single shock reflection, in stark contrast to previously studied shock-driven instabilities. Moreover, surface undulations are only found along external, as opposed to internal, soft solid boundaries. Specifically, classic bubble surface instability mechanisms do not occur in our experiments and here we comment only on the new surface undulations found along the outer boundary of solid hydrogel cylinders. Our findings indicate a new class of impulsively excited surface instability that is driven by cycles of internal shock reflections. 2023-12-06T15:36:14Z 2023-12-06T15:36:14Z 2023 2023-12-06T15:34:03Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/153126 Pickard, Daniel, Martynowych, Dmitro, Lem, Jet, Koshakji, Anwar, Lin, Shaoting et al. 2023. "Converging-diverging shock-driven instabilities along soft hydrogel surfaces." Physical Review E, 107 (2). en 10.1103/physreve.107.l022601 Physical Review E 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) APS |
| spellingShingle | Pickard, Daniel Martynowych, Dmitro Lem, Jet Koshakji, Anwar Lin, Shaoting Zhao, Xuanhe Nelson, Keith Giovanardi, Bianca Radovitzky, Raul Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title | Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title_full | Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title_fullStr | Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title_full_unstemmed | Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title_short | Converging-diverging shock-driven instabilities along soft hydrogel surfaces |
| title_sort | converging diverging shock driven instabilities along soft hydrogel surfaces |
| url | https://hdl.handle.net/1721.1/153126 |
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