Evaluation of the surface damage of brittle materials based on the attenuation of laser-induced surface acoustic wave

2022 ◽  
Vol 189 ◽  
pp. 108617
Author(s):  
Xiaohu Liang ◽  
Bin Lin ◽  
Zaiwei Liu ◽  
Anyao Du
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Brittle Materials ◽  
Surface Damage

The nature of machining damage in brittle materials

1983 ◽  
Vol 385 (1789) ◽  
pp. 461-475 ◽  
Keyword(s):  
Acoustic Wave ◽  
Wave Scattering ◽  
Brittle Materials ◽  
Surface Damage ◽  
Acoustic Wave Scattering ◽  
Equilibrium Crack ◽  
Scattering Strength ◽  
Non Destructive ◽  
Machining Damage

The micromechanics of failure emanating from machining-induced cracks in brittle materials is investigated. In situ monitoring of crack response during breaking tests (with use of acoustic wave scattering), strength measurements and post-failure fractography all indicate that the crack response is dominated by residual stresses. Two components of residual stress have been identified: a crack-wedging force due to the plastic zone beneath the strength-controlling machining groove, and a compressive surface layer due to adjacent grooves. The wedging force dominates and causes stable equilibrium crack extension during a breaking test. The implications of the results for non-destructive evaluation of surface damage by acoustic wave scattering is discussed.

STUDY OF DEFECTS IN a-Ge AND a-GeHxUSING SURFACE ACOUSTIC WAVE TECHNIQUE

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-365-C4-368
Author(s):  
K. L. Bhatia ◽  
M.v. Haumeder ◽  
S. Hunklinger
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Technique

Powder Transport by Surface Acoustic Wave Actuator using Bragg Reflection

2014 ◽  
Vol 134 (12) ◽  
pp. 1934-1935
Author(s):  
Tsunemasa Saiki ◽  
Yuya Matsui ◽  
Yasuto Arisue ◽  
Yuichi Utsumi ◽  
Akinobu Yamaguchi
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Bragg Reflection

Aluminum Nitride Thin Film Based Surface Acoustic Wave Sensors

2008 ◽  
Author(s):  
A. Kabulski ◽  
V. R. Pagán ◽  
D. Cortes ◽  
R. Burda ◽  
O. M. Mukdadi ◽  
...  
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Aluminum Nitride ◽  
Surface Acoustic Wave ◽  
Acoustic Wave Sensors ◽  
Wave Sensors
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