Author
Rajeshkumar Selvaraj
Bio: Rajeshkumar Selvaraj is an academic researcher from VIT University. The author has contributed to research in topics: Composite material & Materials science. The author has an hindex of 5, co-authored 13 publications receiving 60 citations.
Papers
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TL;DR: In this paper, dynamic analysis of three-layered sandwich beam with thin orthotropic skins and multi-wall carbon nanotubes reinforced magnetorheological elastomer (MWCNT-MRE) core have been investigated.
Abstract: In this study, dynamic analysis of three-layered sandwich beam with thin orthotropic skins and multiwall carbon nanotubes reinforced magnetorheological elastomer (MWCNT-MRE) core have been investig...
23 citations
TL;DR: In this article, the free vibration analysis of carbon nanotubes reinforced magnetorheological elastomer (CNT-MRE) sandwich beam has been presented The sandwich specimens are made of thin elastic st
Abstract: In this study, the free vibration analysis of carbon nanotubes reinforced magnetorheological elastomer (CNT-MRE) sandwich beam has been presented The sandwich specimens are made of thin elastic st
20 citations
TL;DR: In this article, the dynamic characterization and instability analysis of a rotating composite magnetorheological fluid sandwich plate under periodic in-plane loading is investigated, and the results show that it is stable with respect to the inplane loading.
Abstract: In this present study, the dynamic characterization and instability analysis of a rotating composite magnetorheological fluid sandwich plate under periodic in-plane loading are investigated. The go...
19 citations
01 Nov 2017
TL;DR: In this paper, the parametric design and contact analysis of composite spur gears are investigated numerically, and each design factor such as stress distributions, strain and deformation are considered to compare composite gear with steel and polymer gears.
Abstract: In this study, the parametric design and contact analysis of composite spur gears are investigated numerically. Composite gear provides an adequate strength to weight ratio, more hardness, durability and low maintenance cost. It is emerging better alternatives for replacing metallic gears. The finite element model of spur gear is developed with the assistance of the Ansys software. In this study each design factor such has stress distributions, strain and deformation are considered to compare composite gear with steel and polymer gears. An APDL gear model has been developed for the design evaluation and comparison study.
15 citations
TL;DR: In this paper, the authors focused on the investigation of vibration and damping characteristics of the rotating laminated composite hybrid MR elastomer sandwich panel and provided the guidelines for the researchers/designers on improving the dynamic properties and reducing the transverse vibrations of composite sandwich structures using the reinforcement of CNTs in smart materials.
15 citations
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TL;DR: Magneto-/ electro-responsive polymers (MERPs) as discussed by the authors are a class of stimuli-responsive materials that are actuated when triggered by external magnetic/electric fields.
66 citations
TL;DR: In this paper, a nonlinear analytical model of a 9-layer fiber metal laminated (FML) plate with an MRE function (Mthis paper) layer was proposed, accounting for internal magnetic and temperature fields for the first time.
35 citations
TL;DR: In this article, the dynamic behavior of composite beams reinforced by carbon nanotubes (CNTs) exposed to a mass moving is investigated by considering the external potential energy due to the applied moving mass, the equations of motion of the CNT-reinforced beam are obtained using Hamilton's principle by combining Reddy's third-order shear deformation theory and nonlocal strain gradient theory.
Abstract: In this study, the dynamic behavior of composite beams reinforced by carbon nanotubes (CNTs) exposed to a mass moving is investigated. By considering the external potential energy due to the applied moving mass, the equations of motion of the CNT-reinforced beam are obtained using Hamilton’s principle by combining Reddy’s third-order shear deformation theory and nonlocal strain gradient theory. Three types of aligned CNT-reinforced beams are considered, namely uniformly distributed CNT beams (UD-CNT) and functionally graded CNT beams type Λ (FGΛ-CNT), and type X (FGX-CNT). Navier’s procedure is applied to obtain the closed-form solutions of simply supported CNT-reinforced beams. Verification of the present solution with previous works is presented. A detailed parametric analysis is carried out to highlight the impact of moving load velocity, nonlocal parameter, material scale parameter, total volume fraction and CNTs distribution patterns on the midspan deflections of CNTs-reinforced composite beams. The proposed model is useful in the designing and analyzing of MEMS/NEMS, nanosensor, and nanoactuator manufactured from CNTs.
32 citations
TL;DR: In this article , the coupled modeling and vibration behaviors of a spinning assembled cylindrical shell-plate structure were investigated and the results of the analysis were verified by the finite element method.
23 citations
TL;DR: In this paper , a honeycomb core shape was proposed and compared with a normal hexagonal shape core in a sandwich beam, which has good flexural stiffness, resonance, fatigue, and stress resistance at higher frequency.
Abstract: The aim of this paper is to present a proposed honeycomb core shape and compare it with a normal hexagonal shape core in a sandwich beam. The sandwich cores are simulated in finite element with different materials; aluminum and epoxy-carbon with six layers are used as face sheet and the results are compared to those obtained theoretically. Simulation of 3-point bending test is performed in commercial software ANSYS to verify the analytical results with the numerical ones. Hence, for simplicity one layer of the skin is used on the equivalent model of sandwich for lesser computational time and more accurate evaluation. Simulation of harmonic analysis of hexagonal core and proposed core shape is carried out in frequency domain to identify the core with less deformation under high frequency and it can withstand harmful effects. The proposed core shape model having the same cell numbers and material as the normal hexagonal model is compared with experimental results; it is observed that the proposed core shape model has good flexural stiffness, resonance, fatigue, and stress resistance at a higher frequency.
19 citations