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A Mixed 4-Node 3D Plate Element Based on Self-Equilibrated Isostatic Stresses


Medium: journal article
Language(s): en 
Published in: International Journal of Structural Stability and Dynamics, , n. 4, v. 15
Page(s): 1450066
DOI: 10.1142/s0219455414500667

A new mixed stress 4-node flat shell finite element, designed for the linear and nonlinear analysis of folded plate structures, is presented. The kinematics of the element is defined by 24 dofs with in- and out-of-plane displacements assumed to be quadratic, controlled by displacement and rotation parameters through an Allman like interpolation, and flexural rotations assumed to be bilinear. The assumed stress approximation, described within a local Cartesian frame aligned with the element orientation, is self-equilibrated and ruled by the minimum number of parameters. The element does not suffer from kinematical locking and rank defectiveness. Many numerical tests show the very good performance of the element.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1142/s0219455414500667.
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