Shear-wave generation from cavitation in soft solids
The formation and dynamics of cavities in liquids lead to focusing of kinetic energy and emission of longitudinal stress waves during the cavity collapse. Here, we report that cavitation in elastic solids may additionally emit shear waves that could affect soft tissues in human bodies/brains. During...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/86251 http://hdl.handle.net/10220/49278 |
| _version_ | 1826115512432590848 |
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| author | Tagawa, Y. Rapet, Julien Ohl, Claus Dieter |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Tagawa, Y. Rapet, Julien Ohl, Claus Dieter |
| author_sort | Tagawa, Y. |
| collection | NTU |
| description | The formation and dynamics of cavities in liquids lead to focusing of kinetic energy and emission of longitudinal stress waves during the cavity collapse. Here, we report that cavitation in elastic solids may additionally emit shear waves that could affect soft tissues in human bodies/brains. During the collapse of the cavity close to an air-solid boundary, the cavity moves away from the boundary and forms a directed jet flow, which confines shear stresses in a volume between the bubble and the free boundary. Elastographic imaging and high-speed imaging resolve this process and reveal the origin of a shear wave in this region. Additionally, the gelatin surface deforms and a conical crack evolves. We speculate that tissue fracture observed in medical therapy may be linked to the non-spherical cavitation bubble collapse. |
| first_indexed | 2024-10-01T03:56:22Z |
| format | Journal Article |
| id | ntu-10356/86251 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:56:22Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/862512023-02-28T19:31:52Z Shear-wave generation from cavitation in soft solids Tagawa, Y. Rapet, Julien Ohl, Claus Dieter School of Physical and Mathematical Sciences Soft Solids Shear-wave Generation Science::Physics The formation and dynamics of cavities in liquids lead to focusing of kinetic energy and emission of longitudinal stress waves during the cavity collapse. Here, we report that cavitation in elastic solids may additionally emit shear waves that could affect soft tissues in human bodies/brains. During the collapse of the cavity close to an air-solid boundary, the cavity moves away from the boundary and forms a directed jet flow, which confines shear stresses in a volume between the bubble and the free boundary. Elastographic imaging and high-speed imaging resolve this process and reveal the origin of a shear wave in this region. Additionally, the gelatin surface deforms and a conical crack evolves. We speculate that tissue fracture observed in medical therapy may be linked to the non-spherical cavitation bubble collapse. Published version 2019-07-11T03:14:45Z 2019-12-06T16:18:54Z 2019-07-11T03:14:45Z 2019-12-06T16:18:54Z 2019 Journal Article Rapet, J., Tagawa, Y., & Ohl, C. D. (2019). Shear-wave generation from cavitation in soft solids. Applied Physics Letters, 114(12), 123702-. doi:10.1063/1.5083141 0003-6951 https://hdl.handle.net/10356/86251 http://hdl.handle.net/10220/49278 10.1063/1.5083141 en Applied Physics Letters © 2019 The Author(s). All rights reserved. This paper was published by AIP in Applied Physics Letters and is made available with permission of The Author(s). 4 p. application/pdf |
| spellingShingle | Soft Solids Shear-wave Generation Science::Physics Tagawa, Y. Rapet, Julien Ohl, Claus Dieter Shear-wave generation from cavitation in soft solids |
| title | Shear-wave generation from cavitation in soft solids |
| title_full | Shear-wave generation from cavitation in soft solids |
| title_fullStr | Shear-wave generation from cavitation in soft solids |
| title_full_unstemmed | Shear-wave generation from cavitation in soft solids |
| title_short | Shear-wave generation from cavitation in soft solids |
| title_sort | shear wave generation from cavitation in soft solids |
| topic | Soft Solids Shear-wave Generation Science::Physics |
| url | https://hdl.handle.net/10356/86251 http://hdl.handle.net/10220/49278 |
| work_keys_str_mv | AT tagaway shearwavegenerationfromcavitationinsoftsolids AT rapetjulien shearwavegenerationfromcavitationinsoftsolids AT ohlclausdieter shearwavegenerationfromcavitationinsoftsolids |