Scattering of ultrasonic waves by internal anomalies in plates immersed in a fluid

Sourav Banerjee; Tribikram Kundu

doi:10.1117/12.659295

15 March 2006 Scattering of ultrasonic waves by internal anomalies in plates immersed in a fluid

Sourav Banerjee, Tribikram Kundu

Proceedings Volume 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V; 617709 (2006) https://doi.org/10.1117/12.659295
Event: Nondestructive Evaluation for Health Monitoring and Diagnostics, 2006, San Diego, CA, United States

Abstract

Non-Destructive Evaluation (NDE) of plate structures is frequently carried out in industrial and laboratory environments. In this paper the wave scattering from horizontally oriented internal cavities or cracks in a plate are studied using DPSM (Distributed Point Source Method). DPSM has gained popularity in last few years in the field of ultrasonic field modelling. DPSM is a semi-analytical technique that can be used to calculate the ultrasonic field (pressure, velocity and displacement fields in a fluid, or stress and displacement fields in a solid) generated by ultrasonic transducers. So far the technique has been used to model ultrasonic field near a fluid-solid interface when a solid half-space is immersed in a fluid. This method has also been used to model the ultrasonic field generated in a homogeneous isotropic solid plate immersed in a fluid. The objective of this study is to present the theoretical modelling of the diffraction and scattering pattern of guided waves in the solid plate when the transducers of finite dimension are placed on both side of the defective plate

Citation Download Citation

Sourav Banerjee and Tribikram Kundu "Scattering of ultrasonic waves by internal anomalies in plates immersed in a fluid", Proc. SPIE 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V, 617709 (15 March 2006); https://doi.org/10.1117/12.659295

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