Conference Papers

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Author: search.filters.author.Swaminathan, K.Subject: search.filters.subject.Functionally graded material

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    Effect of initial stresses on vibration behavior of functionally graded materials
    (Elsevier Ltd, 2020) Swaminathan, K.; Hirannaiah, H.; Rajanna, T.
    Functionally Graded Materials (FGM) is the result of continuous gradation of two or more constituent materials over a certain volume. This type of material overcomes many problems, particularly delamination, cracking and damages which are very frequently found in laminated composite materials. The FGMs are commonly found in space structures, and these structural elements are subjected to various kinds of loadings during its service period, in which in-plane loading is the one which significantly affects the vibration characteristics of the structural elements. In this investigation, the effect of tensile and compressive stresses on vibration characteristics of FG panels has been studied by using finite element technique (FE). For mathematical modelling Poisson's ratio is assumed constant and Young's modulus of elasticity is assumed to vary according to the power-law distribution of volume fraction of the constituents. The plate is modelled by using 8-noded isoparametric element by considering the effect of transverse shear deformation and rotary inertia. The effect of different factors such as volume fraction index, the thickness of the panel, boundary condition and tensile as well as compressive edge loads are considered to study the vibration behaviour of the FGM plate under tensile and compressive uniaxial edge loads. © 2020 Elsevier Ltd. All rights reserved.
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    Vibration Analysis of FGM Plates Resting on Elastic Foundation in Thermal Environment Using Element-Free Galerkin (EFG) Meshless Solution
    (Springer Science and Business Media Deutschland GmbH, 2024) K P, K.P.; Indu, N.; Swaminathan, K.
    The present paper deals with the effect of temperature on the vibration characteristics of functionally graded plates resting on two-parameter elastic foundations. The temperature-dependent mechanical properties of the plates are assumed to vary through thickness. The present solutions are derived using an element-free Galerkin (EFG) meshless method. Using the EFG solution method, the numerical results are presented and compared with those available in the literature. Results show that the foundation stiffness, temperature, and other parameters have a significant influence on the vibration response of functionally graded plates resting on elastic foundation. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
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    An Element-Free Galerkin (EFG) Meshless Solution for Static Analysis of FGM Plates Resting on Elastic Foundation
    (Springer Science and Business Media Deutschland GmbH, 2024) Indu, N.; K P, K.P.; Swaminathan, K.
    An element free Galerkin (EFG) meshless solution method is presented in this paper to illustrate the bending response of FGM plates resting on Winkler–Pasternak elastic foundations. A power law distribution is used to govern the gradation of material properties through the plate thickness. To check the validity of the theory and formulations, the obtained results are compared with the previous results. Comparison studies reveal that the results of the proposed solution method is more accurate and yield faster results than other methods. Parametric studies are performed to show the influences of elastic foundation coefficients and power law index on the deflection of FGM plates. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.