Local formulation for elasto-plastic corotational thin-walled beams based on higher-order curvature terms
2011 (English)In: Finite elements in analysis and design (Print), ISSN 0168-874X, E-ISSN 1872-6925, Vol. 47, no 2, 119-128 p.Article in journal (Refereed) Published
The paper deals with the derivation of a local elasto-plastic finite element formulation of three dimensional corotational beams with arbitrary cross- section. Based on Bernoulli beam kinematics, an improved displacement field is constructed by inclusion of second-order terms of cross-section local rotations. The formulation captures both the Saint-Venant and warping torsional effects of open cross sections. Numerical tests show that the inclusion of the second-order terms of the local bending curvatures gives more accurate and more efficient element that allows a significant reduction of the computational time.
Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 47, no 2, 119-128 p.
Geometrically nonlinear beam, Three-dimensional corotational formulation, Finite element analysis, Arbitrary cross-section, Bending curvatures, Elasto-plasticity
IdentifiersURN: urn:nbn:se:kth:diva-27377DOI: 10.1016/j.finel.2010.08.006ISI: 000284405900005ScopusID: 2-s2.0-78649921810OAI: oai:DiVA.org:kth-27377DiVA: diva2:376803
QC 201012132010-12-132010-12-132016-05-02Bibliographically approved