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Article Dans Une Revue International Journal for Numerical Methods in Biomedical Engineering Année : 2011

Efficient local formulation for elasto-plastic corotational thin-walled beams

Résumé

A local elasto-plastic formulation, based on a low-order nonlinear strain expression using Bernoulli beam kinematics, is presented in this paper. This element, together with the corotational framework proposed in (Comput. Meth. Appl. Mech. Eng. 2002; 191(17): 1755-1789) can be used to analyze the nonlinear buckling and postbuckling of thin-walled beams with arbitrary cross-section. The formulation captures both the Saint-Venant and warping torsional effects of open cross-sections. Numerical examples show that this local formulation is more efficient than the one proposed in (Comput. Meth. Appl. Mech. Eng. 2002; 191(51):5811-5831) based on a Timoshenko beam assumption. Copyright (C) 2009 John Wiley & Sons, Ltd.

Dates et versions

hal-01068893 , version 1 (26-09-2014)

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Rabe Alsafadie, Jean-Marc Battini, Mohammed Hjiaj. Efficient local formulation for elasto-plastic corotational thin-walled beams. International Journal for Numerical Methods in Biomedical Engineering, 2011, 27 (4), pp.498-509. ⟨10.1002/cnm.1311⟩. ⟨hal-01068893⟩
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