Faculty Publications

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Publications by NITK Faculty

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Author: search.filters.author.Kattimani, S.Subject: search.filters.subject.Sandwich plates

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    Effect of temperature on the performance of active constrained layer damping of skew sandwich plate with CNT reinforced composite core
    (Taylor and Francis Ltd., 2022) Kallannavar, V.; Kattimani, S.
    In this paper, the first attempt has been made to investigate the performance of the active constrained layer damping system in the thermal environment. For such investigation, a skew laminated composite sandwich plate with carbon nanotube-reinforced composite core is considered. The nonlinear strain-displacement relations are employed to generate the initial-stress stiffness matrix and the mechanical stiffness matrices using linear strain-displacement relations. The negative velocity feedback control-law is used to control the first few modes of the vibrating sandwich plate. Comprehensive investigation has been carried out to understand influence of geometric and material parameters on the damping performance of the system. © 2021 Taylor & Francis Group, LLC.
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    Active layer damping of bi-directionally tapered functionally graded sandwich plates with 1-3 piezoelectric composites
    (Taylor and Francis Ltd., 2024) Shada, S.K.; Kattimani, S.; M.r, R.
    This article investigates the effect of smart damping on bi-directionally tapered functionally graded sandwich plates. The substrate comprises FG material on both sides of the core of either soft herex or ceramic material. The viscoelastic layer of ALD is restrained, while the compelling layer consists of 1-3PZC. The finite element formulation developed incorporates layer-wise and first-order-shear-deformation theory. The plate’s damping is actively controlled using velocity feedback control incorporating piezoelectric patches. The effects of various parameters of taper ratio and patch positions on vibration control are investigated. The efficacy of the ALD in improving the structural performance of plates is investigated. © 2024 Taylor & Francis Group, LLC.