Show simple item record

dc.contributor.authorMohamed Selim, Hossameldin
dc.contributor.authorPico Vila, Rubén
dc.contributor.authorTrull Silvestre, José Francisco
dc.contributor.authorDelgado Prieto, Miquel
dc.contributor.authorCojocaru, Crina
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Física Computacional i Aplicada
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.identifier.citationMohamed Selim, H. [et al.]. Directional ultrasound source for solid materials inspection: diffraction management in a metallic phononic crystal. "Sensors", 29 Octubre 2020, vol. 20, núm. 21, p. 6148:1-6148:18.
dc.description.abstractIn this work, we numerically investigate the diffraction management of longitudinal elastic waves propagating in a two-dimensional metallic phononic crystal. We demonstrate that this structure acts as an “ultrasonic lens”, providing self-collimation or focusing effect at a certain distance from the crystal output. We implement this directional propagation in the design of a coupling device capable to control the directivity or focusing of ultrasonic waves propagation inside a target object. These effects are robust over a broad frequency band and are preserved in the propagation through a coupling gel between the “ultrasonic lens” and the solid target. These results may find interesting industrial and medical applications, where the localization of the ultrasonic waves may be required at certain positions embedded in the object under study. An application example for non-destructive testing with improved results, after using the ultrasonic lens, is discussed as a proof of concept for the novelty and applicability of our numerical simulation study.
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshUltrasonic waves--Diffraction
dc.subject.lcshNondestructive testing
dc.subject.otherPhononic crystals
dc.subject.otherUltrasonic lens
dc.subject.otherAcoustic lens
dc.subject.otherUltrasonic wave diffraction
dc.titleDirectional ultrasound source for solid materials inspection: diffraction management in a metallic phononic crystal
dc.subject.lemacUltrasons -- Difracció
dc.subject.lemacAssaigs no destructius
dc.contributor.groupUniversitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.contributor.groupUniversitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorMohamed Selim, H.; Pico, R.; Trull, J.; Delgado Prieto, M.; Cojocaru, C.

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain