20.500.12556/RUL-32126 A kinematically exact finite element formulation of elastic-plastic curved beams A finite element, large displacement formulaton of static elastic-plastic analysis of slender arbitrarily curved planar beams is presented. Non-conservative and dynamic loads are at present not included. The Bernoulli hypothesis of plane cross--sections is assumed and the effect of shear strainsis neglected. Exact non-linear kinematic equations of curved beams, derived by Reissner are incorporated into a generalized principle of virtual work through Lagrangian multipliers. The only function that has to be interpolated in the finite element implementation is the rotation of the centroid axis of a beam. This is an important advantage over other classical displacement approaches since the field consistency problem and related locking phenomena do not arise. Numerical examples, comprising elastic and elastic-plastic, curved and straight beams, at large displacements and rotations, show very nice computational and accuracy characteristics of the present family of finite elements. The comparisons with other published results very clearly show the superior performance of the present elements curved beam plasticity finite elements ukrivljeni nosilci plastičnost končni elementi true false false Elsevier Angleški jezik Angleški jezik Neznano 2015-07-10 10:12:13 2015-07-10 10:12:13 2022-11-21 15:20:49 0000-00-00 00:00:00 1998 0 0 Str. 197-214 No. 4 Vol. 67 1998 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.3:624.072.33 0045-7949 10.1016/S0045-7949(98)00046-7 406625 4419338 ORSON_n.pdf ORSON_n.pdf 1 B18E0FE75448E22ECB79615AE567A2B0 e024d619c87f69c57f1729c95451491f94992c7494de6376701a7c4c50369028 100b945e-a1ae-11eb-a523-00155dcfd717 20.500.12556/rul/09c80c04-c2ab-4ca7-8ce3-a04ffd7f7bfa https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=85636 Fakulteta za gradbeništvo in geodezijo 0 0 0