000012400 001__ 12400
000012400 005__ 20160816141443.0
000012400 04107 $$aeng
000012400 046__ $$k2016-05-09
000012400 100__ $$aDvořáková, E.
000012400 24500 $$aON THE ISOGEOMETRIC FORMULATION OF PLANAR CURVED BEAMS

000012400 24630 $$n22.$$pEngineering Mechanics 2016
000012400 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012400 506__ $$arestricted
000012400 520__ $$2eng$$aAn isogeometric formulation of planar Timoshenko beams with variable curvature is presented. The Non-Uniform Rational B-Splines (NURBS) are used for both the geometry and unknown approximations. The NURBS capability of exact geometry representation, which is independent of a mesh density, is very advantageous in the analysis of curved beams as there is no loss of accuracy caused by the geometry approximation. The high accuracy results can be obtained while keeping the computational cost low. A beam element for arbitrarily curved planar beams is implemented and its performance is verified by means of few simple tests. The problem of shear locking is observed and is overcome by using reduced integration.

000012400 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012400 653__ $$aCurved Beams, Finite element analysis, Isogeometric analysis, NURBS, Shear locking.

000012400 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012400 720__ $$aDvořáková, E.$$iPatzák, B.
000012400 8560_ $$ffischerc@itam.cas.cz
000012400 8564_ $$s1168430$$uhttps://invenio.itam.cas.cz/record/12400/files/030bo_o_sol.pdf$$yOriginal version of the author's contribution as presented on CD, id 030, section SOL.
000012400 962__ $$r12369
000012400 980__ $$aPAPER