TY - EJOU
AU - Kintzel, Y. Başar, O.
TI - Finite Rotations and large Strains in Finite Element Shell Analysis
T2 - Computer Modeling in Engineering \& Sciences
PY - 2003
VL - 4
IS - 2
SN - 1526-1506
AB - The objective of this contribution is the development of a finite element model for finite rotation and large strain analysis of thin walled shells involving geometry intersections. The shell configuration is described by a linear polynomial in the thickness coordinate. The director of the shell is multiplicatively decomposed into a stretching parameter and an inextensible unit vector whose rotation is accomplished by an updated-rotation formulation. A rotation vector with three independent components is used throughout the shell which permits advantageously to consider smooth shells and compound shells by a unified procedure. This formulation is introduced into an isoparametric four-node element. The common locking phenomena are significantly reduced by an enhancement of the strain field and the assumed strain concept.
KW - Finite rotation
KW - updated-rotation formulation
KW - compound shells
KW - large strains
KW - enhanced strain concept
DO - 10.3970/cmes.2003.004.217