Measurement of Absolute Acoustic Nonlinearity Parameter Using Laser-Ultrasonic Detection
The absolute acoustic nonlinearity parameter <i>β</i> is defined by the displacement amplitudes of the fundamental and second-order harmonic frequency components of the ultrasonic wave propagating through the material. As <i>β</i> is a sensitive index for the micro-damage int...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/9/4175 |