Journal
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES
Volume 19, Issue 1, Pages -Publisher
LATIN AMER J SOLIDS STRUCTURES
DOI: 10.1590/1679-78256692
Keywords
Nonlinear Electro-elasticity; Compound Matrix Method; Bending Bifurcation; Finite Deformations; Electric Field
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The present study analyzes the bending of a simple electro-elastic cylindrical shell using the compound matrix method. It discusses the boundary layer structure of mu(1) dependence on A/B and carries out numerical observations for bifurcation conditions.
The present study analyzes the bending of a simple electro-elastic cylindrical shell by the compound matrix method. The cross-section of the circular cylindrical shell is a non-circular curved shape, with mu(1) a function of A/B W and the mode number, where A and B are the pre-deformation inner and outer radii of the cylindrical shell, and mu(1) is the ratio of the deformed inner radius to A. In the first step, a numerical model of the problem is developed to obtain specific differential equations. The modeling yields a system of two Ordinary Differential Equations with three boundary conditions of the same type. Next, it is shown that the dependence of mu(1) to A/B has a boundary layer structure. Simple numerical observations were made for bifurcation conditions. The analysis is, in fact, based on the variations of the inner and outer radii A and B, assuming a = mu(1) A and b = mu(2) B, and based on the bifurcation of mu(1) and mu(2) ratios with respect to radius. For this purpose, the compound matrix method is used to show the validity of the arguments.
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