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Sudhakar Ramamoorthy Marur

Bio: Sudhakar Ramamoorthy Marur is an academic researcher from SABIC. The author has contributed to research in topics: Finite element method & Arch. The author has an hindex of 15, co-authored 52 publications receiving 710 citations. Previous affiliations of Sudhakar Ramamoorthy Marur include General Electric & Indian Institutes of Technology.


Papers
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Journal ArticleDOI
TL;DR: In this article, three higher order refined displacement models are proposed for the free vibration analysis of sandwich and composite beam fabrications, which eliminate the need for a shear correction coefficient by assuming a quadratic shear strain variation across the depth of the cross-section.

118 citations

Journal ArticleDOI
TL;DR: In this article, a higher-order refined theory for composite and sandwich beams is presented, which incorporates cubic axial, transverse shear and quadratic transverse normal strain components in the basic formulation, thus modeling the warping of cross section accurately and eliminating the need for a shear correction coefficient.

91 citations

Patent
02 Mar 2014
TL;DR: In this article, the authors present methods for manufacturing a functionally graded polymer material, which consists of preparing a melted polymer mixture comprising a thermoplastic polymer and a magnetic filler dispersed in the thermoplastics, molding the melted mixture and applying a magnetic field to a portion of the mixture to form a functional grade polymer material.
Abstract: Disclosed herein are methods for manufacturing a functionally graded polymer material. The methods comprise preparing a melted polymer mixture comprising a thermoplastic polymer and a magnetic filler dispersed in the thermoplastic polymer, molding the melted polymer mixture and applying a magnetic field to a portion of the melted polymer mixture to form a functionally graded polymer material. The resulting functionally graded polymer material has a magnetic filler gradient formed through a thickness of the material.

55 citations

Patent
19 Dec 2011
TL;DR: In this paper, a structural body of a vehicle comprises: a hollow metal component comprising walls that define a channel, wherein the metal vehicle component has a metal component length, and wherein the vehicle component is selected from the group consisting of beam, rail, pillar, chassis, floor rocker, and cross-bar, combinations comprising at least one of the foregoing.
Abstract: In various embodiments, a structural body of a vehicle comprises: a hollow metal component comprising walls that define a channel, wherein the metal vehicle component has a metal component length, and wherein the metal vehicle component is selected from the group consisting of beam, rail, pillar, chassis, floor rocker, and cross-bar, combinations comprising at least one of the foregoing; and a plastic reinforcement having a honeycomb structure, wherein the plastic reinforcement is located in the channel. The metal component can be a portion of the structural body of the vehicle.

48 citations

Journal ArticleDOI
TL;DR: In this paper, higher-order shear-deformable refined theories, based on isoparametric elements, are adopted for transient dynamic analysis of symmetric and unsymmetric sandwich and composite beam constructions.

40 citations


Cited by
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Book ChapterDOI
01 Jan 1997
TL;DR: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems and discusses the main points in the application to electromagnetic design, including formulation and implementation.
Abstract: This chapter introduces the finite element method (FEM) as a tool for solution of classical electromagnetic problems. Although we discuss the main points in the application of the finite element method to electromagnetic design, including formulation and implementation, those who seek deeper understanding of the finite element method should consult some of the works listed in the bibliography section.

1,820 citations

Journal ArticleDOI
TL;DR: In this article, the nonlinear free vibration of functionally graded nanocomposite beams reinforced by single-walled carbon nanotubes (SWCNTs) based on Timoshenko beam theory and von Karman geometric nonlinearity is investigated.

489 citations

Journal ArticleDOI
TL;DR: In this paper, an analytical formulation and solutions to the natural frequency analysis of simply supported composite and sandwich plates based on a higher-order refined theory developed by the first author and already reported in the literature are presented.

352 citations

Journal ArticleDOI
TL;DR: A critical review of literature on bending, buckling and free vibration analysis of shear deformable isotropic, laminated composite and sandwich beams based on equivalent single layer theories, layerwise theories, zig-zag theories and exact elasticity solution is presented in this paper.

327 citations

Journal ArticleDOI
TL;DR: In this article, the nonlinear free vibration behavior of shear deformable sandwich porous beam is investigated within the context of Timoshenko beam theory, where two non-uniform functionally graded distributions are considered based on the equivalent beam mass associated with a uniform distribution for purpose of comparison.
Abstract: The nonlinear free vibration behavior of shear deformable sandwich porous beam is investigated in this paper within the context of Timoshenko beam theory. The proposed beam is composed of two face layers and a functionally graded porous core which contains internal pores following different porosity distributions. Two non-uniform functionally graded distributions are considered in this paper based on the equivalent beam mass, associated with a uniform distribution for purpose of comparison. The elastic moduli and mass density are assumed to vary along the thickness direction in terms of the coefficients of porosity and mass density, whose relationship is determined by employing the typical mechanical characteristic of an open-cell metal foam. The Ritz method and von Karman type nonlinear strain-displacement relationships are applied to derive the equation system, which governs the nonlinear vibration behavior of sandwich porous beams under hinged or clamped end supports. A direct iterative algorithm is then used to solve the governing equation system to predict the linear and nonlinear frequencies which are presented by a detailed numerical study to discuss the effects of porosity coefficient, slenderness ratio, thickness ratio and to compare the varying porosity distributions and boundary conditions, providing a feasible way to improve the vibration behavior of sandwich porous beams.

273 citations