Numerical simulation of nonlinear Rayleigh wave beams evaluating diffraction, attenuation and reflection effects in non-contact measurements

Numerical simulation of nonlinear Rayleigh wave beams evaluating diffraction, attenuation and reflection effects in non-contact measurements

Although several studies have proven the accuracy of using a non-contact, air-coupled receiver in nonlinear ultrasonic (NLU) Rayleigh wave measurements, inconsistent results have been observed when working with narrow specimens. The objectives of this research are first, to develop a 3D numerical f...

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Bibliographic Details
Main Author: Uhrig, Matthias Pascal
Other Authors: Jacobs, Laurence J.
Format: Others
Language:en_US
Published: Georgia Institute of Technology 2016
Subjects:
Nonlinear ultrasonics
Air-coupled receiver
Non-contact detection
Narrow waveguide
Nonlinear Rayleigh waves
Rayleigh wave beams
Acoustic nonlinearity parameter
Guided wave
Hyperelastic material model
Finite element method
Acoustic pressure
Pressure waves
Nondestructive evaluation
Attenuation
Diffraction
Online Access:http://hdl.handle.net/1853/54368

Internet

http://hdl.handle.net/1853/54368

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