000008805 001__ 8805
000008805 005__ 20141204083522.0
000008805 04107 $$aeng
000008805 046__ $$k12/05/2014
000008805 100__ $$aKala, Z.
000008805 24500 $$aLATERAL-TORSIONAL BUCKLING OF I-SECTION BEAMS WITH INITIAL RANDOM IMPERFECTIONS

000008805 24630 $$n20.$$pEngineering Mechanics 2014
000008805 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008805 506__ $$arestricted
000008805 520__ $$2eng$$aThe paper deals with a statistical analysis of load carrying capacity of a simply supported straight I-beam with equal end moment with cross-section IPE 220, solved by geometrically nonlinear solution influenced by lateral-torsional buckling. The beam was modelled applying the programme ANSYS on behalf of the element BEAM188. Imperfections were considered to be random quantities. The initial curvature and the axis rotation are considered to have the shape of one half-wave of the sine function. The correlation between the amplitudes of initial curvature and initial rotation of the axis is considered as the parameter of solution within the interval from -1 to 1. The influence of this correlation on the change of mean value and standard deviation of random load carrying capacity is studied, the other imperfections being considered to be random quantities resulting from experiments. Realizations of initial imperfections are simulated applying the Latin Hypercube Sampling method. The conclusion presents a discussion of need of paying attention to initial torsion of the axis, when creating stochastic computational models.

000008805 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008805 653__ $$aLateral-torsional Slenderness.

000008805 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008805 720__ $$aKala, Z.$$iValeš, J.
000008805 8560_ $$ffischerc@itam.cas.cz
000008805 8564_ $$s511766$$uhttps://invenio.itam.cas.cz/record/8805/files/158-Kala-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 158.
000008805 962__ $$r70
000008805 980__ $$aPAPER