Limitation principles for mixed finite elements based on the Hu-Washizu variational formulation
Computer Methods in Applied Mechanics and Engineering
Reliability of finite element methods for thin shells
Computational Mechanics for the Twenty-First Century
A two-field mix variational principle for partially connected composite beams
Finite Elements in Analysis and Design
Non-Linear Finite Element Analysis of Solids and Structures: Essentials
Non-Linear Finite Element Analysis of Solids and Structures: Essentials
Nonlinear finite element analysis of composite planar frames with interlayer slip
ICCST '02 Proceedings of the sixth conference on Computational structures technology
Finite Elements in Analysis and Design
Locking-free two-layer Timoshenko beam element with interlayer slip
Finite Elements in Analysis and Design
Finite Elements in Analysis and Design
A family of interface elements for the analysis of composite beams with interlayer slip
Finite Elements in Analysis and Design
Finite Elements in Analysis and Design
Eccentricity effects in the finite element modelling of composite beams
Advances in Engineering Software
Exact finite elements for multilayered composite beam-columns with partial interaction
Computers and Structures
Alleviation of parasitic slip in finite element analysis of composite beams
Computers and Structures
Finite Elements in Analysis and Design
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In this paper, the authors discuss problems that may occur in the finite element analysis of composite beams with deformable shear connection, where slip arises between beam components while contact is preserved. Effects of locking problems, comparable to the membrane and shear locking that may develop in finite elements for common beams, are illustrated. These locking problems mostly affect the description of the curvature and interface slip. A strategy to avoid locking by means of a calibrated choice of the displacement shape functions is then proposed and a comparison between different displacement-based elements, in terms of local error, global error and convergence rate, is presented. The authors also illustrate the effects of slip locking on mixed finite elements and comparisons between displacement-based and mixed elements are shown.