Glass fracture by focusing of laser-generated nanosecond surface acoustic waves

David Veysset*, Steven E. Kooi, Ryadh Haferssas, Mostafa Hassani-Gangaraj, Mohammad Islam, A. A. Maznev, Yevheniia Chernukha, Xiaoguang Zhao, Keiichi Nakagawa, Dmitro Martynowych, Xin Zhang, Alexey M. Lomonosov, Christopher A. Schuh, Raul Radovitzky, Thomas Pezeril, Keith A. Nelson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)42-45
Number of pages4
JournalScripta Materialia
Volume158
DOIs
StatePublished - Jan 1 2019

Keywords

  • Dynamic fracture
  • Glass
  • Interferometry
  • Surface acoustic waves

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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