In this paper, a finite element formulation, using eight independent parameters and high-order spectral/hp functions, for nonlinear analysis is presented. This formulation allows the use of a third-order thickness stretch kinematics, which also avoids Poisson's locking. Full nonlinear terms up to quadratic in the Green-Lagrange strain tensorare retained. Several nontrivial problems are solved using the presented formulation. A comparison between this formulation and others found in the literature,and with shell and solid elements in commercial codes ABAQUS and ANSYS are presented and the differences are brought out.
A continuum eight‐parameter shell finite element for large deformation analysis / Rivera, M. G.; Reddy, J. N.; Amabili, M.. - In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES. - ISSN 1537-6532. - 27:7(2020), pp. 551-560. [10.1080/15376494.2018.1484531]
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