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Simplified model for the non-linear behaviour representation of reinforced conc...
Rodrigues, H.; Andrade-Campos, A.; Romão, X.; Arêde, A.; Varum, H.; Costa, A.In the present paper a simplified model is proposed for the force-deformation behaviour of reinforced concrete members under biaxial loading combined with axial force. The starting point for the model development was an existing fixed-length plastic hinge element model that accounts for the non-linear hysteretic behaviour at the element end-sections, characterized by trilinear moment-curvature laws. To take int...
Numerical analysis of large deformation processes at elevated temperatures
Andrade-Campos, A.; Menezes, L. F.; Teixeira-Dias, F.The authors describe a theoretical model and kinematic approach suitable for the numerical analysis of problems at large deformation finite strains and rotations. The presented formulations are implemented incrementally with a non-linear and rate-dependent constitutive model, adequate to the simulation of high temperature processes. The large deformation kinematic model is based on the additive decomposition of...
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