Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

Acoustoelastic stress measurement has been established for bulk shear wave, in particular with birefringence of the wave. This method, however, evaluates only average stress over thickness of a sample. Some preliminary studies have been reported for local surface stress measurement with Rayleigh or leaky Rayleigh wave. An approach using an acoustic microscope operated with burst waves over 100MHz [1, 2] is markedly sensitive to surface roughness and anisotropy of grains due to very short wave length of the wave. The other approach using contact transducers needs long propagation distance [3, 4].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16B

Chapter

Chapter 6: Material Properties

Section

Residual Stress and Texture

Pages

1663-1668

DOI

10.1007/978-1-4615-5947-4_216

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Measurement of Acoustoelastic Coefficient with Leaky Surface Wave

Brunswick, ME

Acoustoelastic stress measurement has been established for bulk shear wave, in particular with birefringence of the wave. This method, however, evaluates only average stress over thickness of a sample. Some preliminary studies have been reported for local surface stress measurement with Rayleigh or leaky Rayleigh wave. An approach using an acoustic microscope operated with burst waves over 100MHz [1, 2] is markedly sensitive to surface roughness and anisotropy of grains due to very short wave length of the wave. The other approach using contact transducers needs long propagation distance [3, 4].