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]
A continuum eight‐parameter shell finite element for large deformation analysis
Amabili M.
2020-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
