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Dynamic modelling of some nonlinear materials
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2002 (English)Conference paper (Refereed) PublishedAlternative title
Dynamisk modellering av nĂ¥gra material (Swedish)
Abstract [en]

A nonlinear layer can be a model for a cloud of gas bubbles in a liquid, a crack or split plane in a solid, or contact between two tighted surfaces. Solutions were derived for media under strong load. Numerical calculations based on Preisach-Mayergoyz space description (nonlinear stress-strain relationships typical for solids containing mesoscopic inhomogeneities or defects) have given results like those obtained from LISA (see results by Delsanto). IMVITED. Non-uniform massdistribution of grains immersed into a vibrating fluid create internal forces which is responsible for generation of higher harmonics. Tests on slow dynamics were performed.

Place, publisher, year, edition, pages
Sevilla, Spain, 2002.
Keyword [en]
nonlinear material description, nonlinear acoustic crack detection, nonlinear elastic wave spectrosopy, nonlinear nondestructive testing, slow dynamics
National Category
Applied Mechanics
URN: urn:nbn:se:bth-10260Local ID: diva2:838343
FORUM ACUSTICUM ( European Acoustical Association etc) SEVILLA September 16-20, 2002
Available from: 2012-09-18 Created: 2002-09-04 Last updated: 2015-06-30Bibliographically approved

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Hedberg, Claes
Applied Mechanics

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