Linked Life Data

19206768

Source:http://linkedlifedata.com/resource/pubmed/id/19206768

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-2-11
pubmed:abstractText
The nonlinear interaction between a high frequency probing Lamb wave and a bilayer containing a tangential delamination at the interlayer interface, whose contact conditions are dynamically changing due to a high amplitude Lamb wave with a long wavelength, is modeled in a quasistationary approach. The impact of the evolution of the contact condition on the mode conversion coefficients that describe the interaction of the probing wave with the delamination region leads to spectral enrichment due to cross-modulation spectral components between the probing wave and the modulating wave. The dynamical behavior of the normal displacement at the externally accessible surfaces is investigated for two different types of incident probing wave, both for an absorbing and a nonabsorbing bilayer structure, for variations in the contact quality modulation and as a function of defect size. The results can serve as a parametric guide for experimentalists considering the use of nonlinear harmonic generation of Lamb waves as a tool for nondestructive testing of bilayers, such as rubber-steel composites, in storage tanks and pipelines.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1520-8524
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3397-409
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Nonlinear modulation of Lamb modes by clapping delamination.
pubmed:affiliation
Departement Natuurkunde, Laboratorium voor Akoestiek en Thermische Fysica, KU Leuven, Leuven, Belgium.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't