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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2010.1557
|2 doi
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|a pubmed24n0662.xml
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|a eng
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| 100 |
1 |
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|a Sarens, Bart
|e verfasserin
|4 aut
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| 245 |
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|a Investigation of contact acoustic nonlinearity in delaminations by shearographic imaging, laser doppler vibrometric scanning and finite difference modeling
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 31.08.2010
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|a Date Revised 10.06.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Full-field dynamic shearography and laser Doppler vibrometric scanning are used to investigate the local contact acoustic nonlinear generation of delamination-induced effects on the vibration of a harmonically excited composite plate containing an artificial defect. Nonlinear elastic behavior caused by the stress-dependent boundary conditions at the delamination interfaces of a circular defect is also simulated by a 3-D second-order, finite-difference, staggered-grid model (displacement-stress formulation). Both the experimental and simulated data reveal an asymmetric motion of the layer above the delamination, which acts as a membrane vibrating with enhanced displacement amplitude around a finite offset displacement. The spectrum of the membrane motion is enriched with clapping-induced harmonics of the excitation frequency. In case of a sufficiently thin and soft membrane, the simulations reveal clear modal behavior at sub-harmonic frequencies caused by inelastic clapping
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Verstraeten, Bert
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Glorieux, Christ
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kalogiannakis, Georgios
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Van Hemelrijck, Danny
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 57(2010), 6 vom: 02. Juni, Seite 1383-95
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
1 |
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|g volume:57
|g year:2010
|g number:6
|g day:02
|g month:06
|g pages:1383-95
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|u http://dx.doi.org/10.1109/TUFFC.2010.1557
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