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Nonlinear scattering by a partially closed surface breaking crack
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
2005 (English)In: Review of Progress in Quantitative Nondestructive Evaluation, Vols 24A and 24B / [ed] Thompson, DO; Chimenti, DE, MELVILLE: AMER INST PHYSICS , 2005, Vol. 760, 43-50 p.Conference paper, Published paper (Refereed)
Abstract [en]

Nonlinear scattering from a partially closed, two dimensional, surface-breaking crack in a homogenous linear elastic half-space is considered. The boundary conditions along the crack are described in terms of the mechanics of two distributions of nonlinear springs. Both the linear and the nonlinear acoustic response of the crack shows to be highest when the surface breaking crack is insonified by a shear vertical wave at the longitudinal critical angle. The increased efficiency of generation of higher harmonics under the above circumstances suggests a means of localizing the nonlinear crack. Finally, the model provides a simple interpretation of the highly localized nonlinear response of delaminations observed in thin composites.

Place, publisher, year, edition, pages
MELVILLE: AMER INST PHYSICS , 2005. Vol. 760, 43-50 p.
Series
AIP CONFERENCE PROCEEDINGS, ISSN 0094-243X ; 760
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-43197DOI: 10.1063/1.1916658ISI: 000228893300004Scopus ID: 2-s2.0-33748579865ISBN: 0-7354-0245-0 (print)OAI: oai:DiVA.org:kth-43197DiVA: diva2:447904
Conference
31st Annual Review of Progress in Quantitative Nondestructive Evaluation. Colorado Sch Mines, Golden, CO. JUL 25-30, 2004
Note
QC 20111013Available from: 2011-10-13 Created: 2011-10-13 Last updated: 2011-10-13Bibliographically approved

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Citation style
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