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A warping model for reinforced concrete beams under multiaxial loading

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URI: http://hdl.handle.net/2042/57837
Title: A warping model for reinforced concrete beams under multiaxial loading
Author: Capdevielle, Sophie; Grange, Stéphane; Dufour, Frédéric; Desprez, Cédric
Abstract: The present research focuses on the numerical modelling of structures using the multifiber beam element method. A formulation to account for shear warping is developed. The local warping degrees of freedom are computed along with the global beam degrees of freedom by satisfying the structure equilibrium. In the case of pure torsion, the evolution of the warping shape only depends on the concrete damage state. The comparison of numerical and experimental torque-twist curves ascertains the importance of including torsional warping in the formulation. Ongoing work tests the numerical behaviour of structural elements subject to transverse shear warping.
Subject: torsion; warping; concrete; damage; nonlinear analysis; finite elements; multifiber beams
Publisher: AFM, Association Française de Mécanique
Date: 2015

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