Dynamic modelling of some nonlinear materials
Blekinge Institute of Technology, Department of Mechanical Engineering2002 (English)Conference paper (Refereed) PublishedAlternative title
Dynamisk modellering av några material (Swedish)
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.
nonlinear material description, nonlinear acoustic crack detection, nonlinear elastic wave spectrosopy, nonlinear nondestructive testing, slow dynamics
IdentifiersURN: urn:nbn:se:bth-10260Local ID: oai:bth.se:forskinfo15603A9245D83BEDC1256C2A004D6A0AOAI: oai:DiVA.org:bth-10260DiVA: diva2:838343
FORUM ACUSTICUM ( European Acoustical Association etc) SEVILLA September 16-20, 2002