Journal ArticleDOI
An exact finite rotation shell theory, its mixed variational formulation and its finite element implementation
Carlo Sansour,Hans Bufler +1 more
TLDR
In this paper, a non-linear shell theory, including transverse shear strains, with exact description of the kinematical fields is developed, and the strain measures are derived via the polar decomposition theorem allowing for an explicit use of a three parametric rotation tensor.Abstract:
A non-linear shell theory, including transverse shear strains, with exact description of the kinematical fields is developed. The strain measures are derived via the polar decomposition theorem allowing for an explicit use of a three parametric rotation tensor. Thus in-plane rotations, also called drilling degrees of freedom, are included in a natural way. Various alternatives of the theory are derived. For a special version of the theory, with altogether six kinematical fields, different mixed variational principles are given. A hybrid finite element formulation, which does not exhibit locking phenomena, is developed. Numerical examples of shell deformation at finite rotations, with excellent element performance, are presented. Comparison with results reported in the literature demonstrates the features of the theory as well as the proposed finite element formulation.read more
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Journal ArticleDOI
Popular benchmark problems for geometric nonlinear analysis of shells
Kam Yim Sze,X. H. Liu,S. H. Lo +2 more
TL;DR: In this article, the results of geometric nonlinear benchmark problems of shells are presented in the form of load-deflection curves and the relative convergent difficulty of the problems are revealed by the number of load increments and the total number of iterations required by an automatic load increment scheme for attaining the converged solutions under the maximum loads.
Journal ArticleDOI
A survey of recent shell finite elements
TL;DR: A comprehensive survey of the literature on curved shell finite elements can be found in this article, where the first two present authors and Liaw presented a survey of such literature in 1990 in this journal.
Reference EntryDOI
Models and finite elements for thin-walled structures
TL;DR: In this paper, the authors provide an overview of modeling and discretization aspects in finite element analysis of thin-walled structures, focusing on nonlinear finite element formulations for large displacements and rotations in the context of elastostatics.
Journal ArticleDOI
A 4-node finite shell element for the implementation of general hyperelastic 3D-elasticity at finite strains
TL;DR: In this paper, a finite shell element for large deformations is presented based on extensible director kinematics, which is an interface to arbitrary three-dimensional material laws and is characterized by a course mesh accuracy and distortion insensitivity compared with bilinear displacement approaches.
Journal ArticleDOI
Computational aspects of vector-like parametrization of three-dimensional finite rotations
TL;DR: Theoretical and computational aspects of vector-like parametrization of three-dimensional finite rotations, which uses only three rotation parameters, are examined in detail in this paper.
References
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Book
The finite element method
TL;DR: In this article, the methodes are numeriques and the fonction de forme reference record created on 2005-11-18, modified on 2016-08-08.
Journal ArticleDOI
A four-node plate bending element based on Mindlin/Reissner plate theory and a mixed interpolation
TL;DR: In this article, a 4-node plate bending element for linear elastic analysis is presented, as a special case, from a general nonlinear continuum mechanics based four-node shell element formulation.
Journal ArticleDOI
A three-dimensional finite-strain rod model. Part II: Computational aspects
Juan C. Simo,Loc Vu-Quoc +1 more
TL;DR: In this article, a variational formulation and computational aspects of a three-dimensional finite-strain rod model, considered in Part I, are presented, which bypasses the singularity typically associated with the use of Euler angles.
Journal ArticleDOI
Rational approach for assumed stress finite elements
Theodore H. H. Pian,K. Sumihara +1 more
TL;DR: In this paper, a new method for the formulation of hybrid elements by the Hellinger-Reissner principle is established by expanding the essential terms of the assumed stresses as complete polynomials in the natural coordinates of the element.
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