Glass Fracture by Focusing of Laser-Generated Nanosecond Surface Acoustic Waves

Author(s)
Veysset, David Georges; Kooi, Steven E; Haferssas, Ryadh; Hassani Gangaraj, Seyyed Mostafa; Islam, Mohammad; ... Show more
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Alternative title
Glass fracture by focusing of laser-generated nanosecond surface acoustic waves
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Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/
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Abstract
Dynamic fracture of borosilicate glass through focusing of high-amplitude nanosecond surface acoustic waves (SAWs) at the micron scale is investigated in an all-optical experiment. SAWs are generated by a picosecond laser excitation pulse focused into a ring-shaped spot on the sample surface. Interferometric images capture the SAW as it converges towards the center, focuses, and subsequently diverges. Above a laser energy threshold, damage at the acoustic focal point is observed. Numerical calculations help us determine the time evolution of the stress distribution. We find that the glass withstands a local tensile stress of at least 6 GPa without fracture. Keyword: Dynamic fracture; Surface acoustic waves; Interferometry; Glass
Date issued
2018-08
URI
https://hdl.handle.net/1721.1/123992
Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies; Massachusetts Institute of Technology. Department of Chemistry; Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Scripta Materialia
Publisher
Elsevier BV
Citation
Veysset, David et al. "Glass fracture by focusing of laser-generated nanosecond surface acoustic waves." Scripta Materialia, 158 (January 2019): 42-45.
Version: Author's final manuscript
ISSN
1359-6462
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