Material defect reconstruction by non-destructive testing with laser induced ultrasonics

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Title:	Material defect reconstruction by non-destructive testing with laser induced ultrasonics
Author:	Mohamed Selim, Hossameldin; Delgado Prieto, Miquel; Trull Silvestre, José Francisco; Pico Vila, Rubén; Cojocaru, Crina
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group; Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
Abstract:	Aligned with current research efforts and industrial applications on nondestructive testing, in this work, a hybrid system combining remotely induced laser ultrasonics with conventional transducer detection is studied for defects detection in metallic parts. The processing of the induced acoustic emission waves is proposed to be approached by means of a high-resolution volumetric signal processing procedure based on the synthetic aperture focusing technique for the benefit of the final 2D visualization of the defects. The advantages of the hybrid non-destructive testing approach and the performance of the processing technique are experimentally validated.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Física -Testing -Ultrasonic waves -Assaigs (Tecnologia) -Ultrasons
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Document type:	Article - Published version Conference Object
Published by:	Institute of Physics (IOP)
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