000013489 001__ 13489
000013489 005__ 20161114165556.0
000013489 04107 $$aeng
000013489 046__ $$k2011-05-25
000013489 100__ $$aLaghrouche, O.
000013489 24500 $$aExtension of the Pufem to Elastic Wave Propagation in Layered Media

000013489 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013489 260__ $$bNational Technical University of Athens, 2011
000013489 506__ $$arestricted
000013489 520__ $$2eng$$aThis work deals with the extension of the Partition of Unity Finite Element Method (PUFEM) to solve wave problems involving propagation, transmission and reflection in layered elastic media. Problems dealing with wave reflection at a free surface and propagation of pure Rayleigh waves are also considered. The proposed method consist to apply the plane wave basis decomposition to the elastic wave equation in each layer of the elastic medium and then enforce necessary continuity conditions at the interfaces through the use of Lagrange multipliers. The accuracy and effectiveness of the proposed technique is determined by comparing results for selected problems with known analytical solutions.

000013489 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013489 653__ $$aElastic waves, finite elements, plane wave basis, Lagrange multipliers, layered media, free surface, Rayleigh waves.

000013489 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013489 720__ $$aLaghrouche, O.$$iEl-Kacimi, A.$$iTrevelyan, J.
000013489 8560_ $$ffischerc@itam.cas.cz
000013489 8564_ $$s7220019$$uhttps://invenio.itam.cas.cz/record/13489/files/187.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 32 Waves and Computation.
000013489 962__ $$r13401
000013489 980__ $$aPAPER