Use of Lagrange multipliers to combine 1D variable kinematic finite elements

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Strong formulation finite element method for arbitrarily shaped laminated plates - Part I. Theoretical analysis (2014, background): “…author, Professor., E-mail: francesco.tornabene@unibo.it Nicholas Fantuzzi and Francesco Tornabene higher-order one dimensional models have been introduced in literature for studying several composite structures (Carrera and Pagani 2013, 2014, Carrera et al. 2013 and Pagani et al. 2013, 2014).”
Hierarchical theories of structures based on Legendre polynomial expansions with finite element applications (2017, methodology): “This class of 1D CUF models, which are known as TE (Taylor Expansion) models in the literature, have been used in various works (see for example [23, 24, 25, 26, 27]).”
Recent developments on refined theories for beams with applications (2015, unknown): “Carrera et al. (2013l) have obtained similar results by exploiting Lagrange multipliers.”