Appraising Kirchhoff approximation theory for the scattering of elastic shear waves by randomly rough defects

Rapid and accurate methods, based on the Kirchhoff approximation (KA), are developed to evaluate the scattering of shear waves by rough defects and quantify the accuracy of this approximation. Defect roughness has a strong effect on the reflection of ultrasound, and every rough defect has a differen...

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Veröffentlicht in:	Journal of sound and vibration 2019-11, Vol.460, p.114872, Article 114872
Hauptverfasser:	Haslinger, Stewart G., Lowe, Michael J.S., Huthwaite, Peter, Craster, Richard V., Shi, Fan
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Computer simulation Cracks Defects Destructive testing Diffuse scattered field Elastic scattering Elastic shear waves Flaw detection Inspection Kirchhoff approximation Longitudinal waves Mathematical analysis Non-destructive evaluation Nondestructive testing Randomly rough surface S waves Scattering Scattering angle Sensitivity analysis Shear Shear stress Surface roughness Surface waves
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