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Local formulation for elasto-plastic corotational thin-walled beams based on higher-order curvature terms
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0003-2104-382X
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
Abstract [en]

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.
Keyword [en]
Geometrically nonlinear beam, Three-dimensional corotational formulation, Finite element analysis, Arbitrary cross-section, Bending curvatures, Elasto-plasticity
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-27377DOI: 10.1016/j.finel.2010.08.006ISI: 000284405900005ScopusID: 2-s2.0-78649921810OAI: diva2:376803

QC 20101213

Available from: 2010-12-13 Created: 2010-12-13 Last updated: 2016-05-02Bibliographically approved

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Battini, Jean -Marc
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