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K.R. Sivadas

Bio: K.R. Sivadas is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Shell (structure) & Isotropy. The author has an hindex of 6, co-authored 6 publications receiving 163 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the effects of thickness variation on natural frequencies of laminated conical shells have been studied by using a semi-analytical finite element method, where Love's first approximation thin shell theory is used to solve the problem.

52 citations

Journal ArticleDOI
TL;DR: In this article, a semi-analytical finite element analysis is presented for determining the natural frequencies of thin circular isotropic cylindrical shells with variable thickness, where Love's first approximation shell theory is used to solve the problem.

40 citations

Journal ArticleDOI
TL;DR: In this paper, the suitability of different theories used for vibration studies has been investigated, viz. Love's first approximation shell theory, an improved theory with shear deformation and rotatory inertia, and a shell theory with thickness normal strain and shear deformations.

35 citations

Journal ArticleDOI
TL;DR: In this paper, a higher-order axisymmetric finite element with 21 degrees of freedom was used to solve the problem of axismmetric vibration analysis of thin shells of revolution.

17 citations

Journal ArticleDOI
TL;DR: In this article, an improved shell theory with shear deformation and rotatory inertia has been used, together with a semi-analytical higher order sub-parametric finite element with five nodes per element and 25 degrees of freedom.

15 citations


Cited by
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Journal ArticleDOI
Ömer Civalek1
TL;DR: In this article, a free vibration analysis for laminated conical and cylindrical shells was carried out using Love's first approximation thin shell theory and solved using discrete singular convolution (DSC) method.

158 citations

Journal ArticleDOI
TL;DR: In this article, the free vibration analysis of thin conical shells under different boundary conditions is carried out using the element-free kp-Ritz method, and convergence studies are performed based on the influences of the support size and the number of nodes.

157 citations

Journal ArticleDOI
Ömer Civalek1
TL;DR: In this paper, free vibration analysis of laminated conical shells is presented by using the numerical solution of governing differential equations of motion based on transverse shear deformation theory.
Abstract: Free vibration analysis of laminated conical shells is presented by using the numerical solution of governing differential equations of motion based on transverse shear deformation theory. Results are presented for isotropic, orthotropic, and laminated cases for conical shells. Free vibrations of circular cylindrical shells and annular plates are treated as special cases. To verify the accuracy of this method, comparisons of the present results are made with results available in the open literature. Numerical results in vibrations of laminated conical shells are presented for different geometric and material parameters.

120 citations