000022317 001__ 22317
000022317 005__ 20170622150007.0
000022317 04107 $$aeng
000022317 046__ $$k2015-05-25
000022317 100__ $$aDikaros, Ioannis
000022317 24500 $$aGENERALIZED WARPING EFFECT IN THE DYNAMIC ANALYSIS OF BEAMS OF ARBITRARY CROSS SECTION

000022317 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022317 260__ $$bNational Technical University of Athens, 2015
000022317 506__ $$arestricted
000022317 520__ $$2eng$$aIn this paper a general formulation for the nonuniform warping dynamic analysis of beams of arbitrary simply or multiply connected cross section, under arbitrary external loading and general boundary conditions is presented taking into account the effects of rotary and warping inertia. The nonuniform warping distributions are taken into account by employing four independent warping parameters multiplying a shear warping function in each direction and two torsional warping functions, respectively, which are obtained by solving the corresponding boundary value problems, formulated exploiting the longitudinal local equilibrium equation. A shear stress “correction” is also performed in order to improve the stress field arising from the employed kinematical considerations. Ten initial boundary value problems are formulated with respect to the displacement and rotation components as well as to the independent warping parameters and solved using the Analog Equation Method, a Boundary Element Method based technique in combination with an appropriate time integration scheme. The warping functions and the geometric constants including the additional ones due to warping are evaluated employing a pure BEM approach.

000022317 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022317 653__ $$aNonuniform warping; Shear lag; Shear deformation; Dynamic Analysis; Boundary Element Method.

000022317 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022317 720__ $$aDikaros, Ioannis$$iPapadopoulos, Dimitrios$$iArgyridi, Amalia$$iSapountzakis, Evangelos
000022317 8560_ $$ffischerc@itam.cas.cz
000022317 8564_ $$s6924814$$uhttps://invenio.itam.cas.cz/record/22317/files/C441.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022317 962__ $$r22030
000022317 980__ $$aPAPER