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

被引：11

作者：

Veysset, David ^{[1
,2
]}

Kooi, Steven E. ^{[1
]}

Haferssas, Ryadh ^{[1
,3
]}

Hassani-Gangaraj, Mostafa ^{[4
]}

Islam, Mohammad ^{[1
,3
]}

Maznev, A. A. ^{[1
,2
]}

Chernukha, Yevheniia ^{[5
]}

Zhao, Xiaoguang ^{[6
]}

Nakagawa, Keiichi ^{[7
,9
]}

Martynowych, Dmitro ^{[1
,2
]}

Zhang, Xin ^{[6
]}

Lomonosov, Alexey M. ^{[8
]}

Schuh, Christopher A. ^{[4
]}

Radovitzky, Raul ^{[1
,3
]}

Pezeril, Thomas ^{[4
]}

Nelson, Keith A. ^{[1
,2
]}

机构：

[1] MIT, Inst Soldier Nanotechnol, Cambridge, MA 02139 USA

[2] MIT, Dept Chem, Cambridge, MA 02139 USA

[3] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA

[4] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[5] Univ Maine, Inst Mol & Mat Mans, UMR CNRS 6283, F-72085 Le Mans, France

[6] Boston Univ, Dept Mech Engn, Boston, MA 02215 USA

[7] Univ Tokyo, Dept Bioengn, Tokyo 1138656, Japan

[8] Prokhorov Gen Phys Inst RAS, Moscow, Russia

[9] Univ Tokyo, Dept Precis Engn, Tokyo 1138656, Japan

来源：

SCRIPTA MATERIALIA | 2019年 / 158卷

基金：

美国国家科学基金会;

关键词：

Dynamic fracture; Surface acoustic waves; Interferometry; Glass; SPALL STRENGTH; ALUMINUM; BEHAVIOR; FAILURE;

D O I：

10.1016/j.scriptamat.2018.08.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：42 / 45

页数：4

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