Nondestructive Evaluation of Material Damage Using Nonlinear Rayleigh Waves Approach

Guo Shuang Shui; Yue Sheng Wang

doi:10.4028/www.scientific.net/AMR.463-464.1522

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 463-464Nondestructive Evaluation of Material Damage Using...

Nondestructive Evaluation of Material Damage Using Nonlinear Rayleigh Waves Approach

Abstract:

A nonlinear Rayleigh wave approach is presented for nondestructive evaluation of material damage in this paper. Rayleigh waves are experimentally generated and detected with wedge transducers, and the nonlinear parameters are measured at different stress levels for AZ31 magnesium alloy plate specimen. By experimental way, it is observed that there is a direct correlation between the acoustic nonlinearity measured with nonlinear Rayleigh waves and the level of plasticity. The result shows that there is a significant increase in the nonlinear parameters at monotonic tensile loads above the material’s yield stress, and it demonstrates the effectiveness of the proposed experimental procedure to track the surface damage in alloys.

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Periodical:

Advanced Materials Research (Volumes 463-464)

Pages:

1522-1526

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.463-464.1522

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Online since:

February 2012

Authors:

Guo Shuang Shui, Yue Sheng Wang

Keywords:

Material Damage, Nondestructive Evaluation, Nonlinear Rayleigh Waves

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