000015704 001__ 15704
000015704 005__ 20161115135327.0
000015704 04107 $$aeng
000015704 046__ $$k2013-06-12
000015704 100__ $$aTriantafyllou, S.
000015704 24500 $$aA Three Dimensional Multiscale Formulation for the Nonlinear Dynamic Analysis of Masonry Structures

000015704 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015704 260__ $$bNational Technical University of Athens, 2013
000015704 506__ $$arestricted
000015704 520__ $$2eng$$aIn this work, a three dimensional multiscale formulation is presented for the analysis of masonry structures based on the multiscale finite element formulation. The method is develloped within the framework of the Enhanced Multiscale Finite Element Method. Through this approach, two discretization schemes are considered, namely a fine mesh that accounts for the micro-structure and a coarse mesh that encapsulates the former. Through a numerically derived mapping, the fine scale information is propagated to the coarse mesh where the numerical solution of the governing equations is performed. Inelasticity is introduced at the fine mesh by considering a set of internal variables corresponding to the plastic deformation accumulatimg at the Gauss points of each fine-scale element. These additional quantities evolve according to properly defined smooth evolution equations. The proposed formalism results in a nonlinear dynamic analysis method where the micro-level state matrices need only be evaluated once at the beginning of the analysis procedure. The accuracy and computational efficiency of the proposed scheme is verified through an illustrative example.

000015704 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015704 653__ $$aComposites, Multiscale, Hysteretic, Masonry.

000015704 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015704 720__ $$aTriantafyllou, S.$$iChatzi, E.
000015704 8560_ $$ffischerc@itam.cas.cz
000015704 8564_ $$s1637051$$uhttps://invenio.itam.cas.cz/record/15704/files/1292.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 03 COMPUTATIONAL SEISMIC STRUCTURAL ANALYSIS
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000015704 962__ $$r15525
000015704 980__ $$aPAPER