An Approach To Statical and Quasi-statical Nonlinear Analysis of Structures in Small Strains and Finite Rotations Hypotheses
Author(s): |
S. Lopez
K. Russo G. La Sala |
---|---|
Medium: | journal article |
Language(s): | English |
Published in: | International Journal of Structural Stability and Dynamics, February 2013, n. 1, v. 13 |
Page(s): | 1250039 |
DOI: | 10.1142/s0219455412500393 |
Abstract: |
A geometrically nonlinear formulation to analyze structures in the hypotheses of large displacements and rotations and small strains is presented. In this formulation, applied to low-order elements and based on the total Lagrangian kinematics, the use of the rotation matrices is bypassed. A selectively based definition of the strain tensor, used in order to avoid shear-locking problems, is effected by the linear definition of deformations because it is element reference system independent. In addition, complex manipulations required to obtain conservative descriptions and well-posed transformation matrices are avoided. Numerical tests have been carried out to validate the developed technique both in the statical and in the quasi-statical context. |
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10352858 - Published on:
14/08/2019 - Last updated on:
14/08/2019