Nonlinear response of a layer to pulse action in diagnostics of small inhomogenities

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Full text:
Author(s): Oleg Rudenko, L.E. Sobisevich, A.L. Sobisevich, Claes Hedberg
Title: Nonlinear response of a layer to pulse action in diagnostics of small inhomogenities
Translated title: Ickelinjärt pulssvar från ett skikt vid undersökning av små inhomogeniteter
Journal: Doclady, Section Mechanics (Reports of the Russian Academy of Sciences) / Doklady Akademii Nauk
Year: 2000
Volume: 374 ; 1-3
Pagination: 194-197
ISSN: 0869-5652
Publisher: MAIK Nauka/Interperiodica Publishing, Russia
Organization: Blekinge Institute of Technology
Department: Dept. of Mechanical Engineering (Institutionen för maskinteknik)
Dept. of Mechanical Engineering S-371 79 Karlskrona
+46 455 38 50 00
http://www.ima.bth.se/
Authors e-mail: claes.hedberg@bth.se
Language: English
Abstract: Giant nonlinear respons are observed at acoustic irradiation of microscopic gas bubbles in liquids, cracks and fluid-filled pores in solids; and compressed contact of rough surfaces, and is used in diagnostics of materials of industrial and geological structures. Reconstruction of characteristics of a scattering inhomogeneity requires an analyses of complicated inverse problems. The problem of plane-wave incidence upon a layer is simple and serves a model for more complicated inhomogeneities; its response enables us to reconstruct the spectral composition and field structure of other nonlinear scatterers.
Summary in Swedish: Små materiella störningar i material ger stora ickelinjära effekter. Artikeln beskriver reflektion och transmission från ett allmänt ickelinjärt skikt för en akustisk puls.
Subject: Mechanical Engineering\Structural Dynamics
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