000013626 001__ 13626
000013626 005__ 20161114165849.0
000013626 04107 $$aeng
000013626 046__ $$k2011-05-25
000013626 100__ $$aIndeitsev, D.
000013626 24500 $$aNon-Stationary Problems of Elastic Waveguides with Inclusions

000013626 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013626 260__ $$bNational Technical University of Athens, 2011
000013626 506__ $$arestricted
000013626 520__ $$2eng$$aIn modern constructions, thin-layer coats are often used as protecting or strengthening elements. Deformations of such constructions may cause significant stresses on the interface between the base and the coat because of the difference in their physical-mechanical properties, which leads to the destruction or delamination of the cover. Of special interest is strength analysis under dynamical or vibrational impacts because of the possibility of localizing oscillations in a neighborhood of the initial inhomogeneities (such as inclusions, defects, construction elements, etc.). In this paper, on the example of the delamination of a string from an elastic substrate, the possibility of localizing oscillations on a delamination defect is demonstrated and the effect of this localization on the growth of the delamination zone is analyzed. A simplified setting of the problem is considered. The possibility of localizing oscillations on a delamination defect is demonstrated and an approximate analytical solution is constructed, which takes into account only the first symmetric form of oscillations describing the development of the initial delamination. A numerical modeling of the problem is performed, and the results of modeling are compared with the approximate analytical solution.

000013626 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013626 653__ $$aElastic waveguide, Localizing oscillations, Trapped modes, Film delamination.

000013626 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013626 720__ $$aIndeitsev, D.$$iAbramyan, A.$$iMochalova, Y.$$iSemenov, B.
000013626 8560_ $$ffischerc@itam.cas.cz
000013626 8564_ $$s119104$$uhttps://invenio.itam.cas.cz/record/13626/files/399.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 15 Linear Wave Propagation in Advanced Elastic Wave Guides.
000013626 962__ $$r13401
000013626 980__ $$aPAPER