Journal Articles
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/19884
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Item Nonlinear bending and free vibration response of SUS316-Al2O3 functionally graded plasma sprayed beams: theoretical and experimental study(SAGE Publications Inc. claims@sagepub.com, 2018) Malik, P.; Kadoli, R.Functionally graded SUS316-Al2O3 beams with ceramic content varying from 0 to 40% were prepared by a plasma spraying technique. Nonlinear finite element analysis was used to obtain the static deflection and free vibration of a clamped-free functionally graded beam. Von Kármán geometric nonlinearity and power law variation in material gradation through the beam thickness are considered in the analysis. The maximum error between the experimental and nonlinear finite element results for deflection is 6.68% and 14.31% on the fundamental frequency. Numerical results have also been attempted using ANSYS 3D solid element and they compare more closely with the experimental results. © 2016, © The Author(s) 2016.Item Validation of Thermal and Thermo-Elastic Responses in Fixed-Free Functionally Graded Beams Under Localized Heating(Springer Science and Business Media Deutschland GmbH, 2025) Malik, P.; Kadoli, R.The combination of multiple constituent materials, when spatially graded, enables the creation of composite materials with tailored physical properties, making them ideal for applications in defense, aerospace, energy, and medical sectors. This study focuses on developing functionally graded materials (FGMs) with two extreme physical properties: high-temperature resistance and high strength, specifically investigating SUS316-Al2O3 beam composites. SUS316-Al2O3 beams were fabricated using the plasma spraying technique. The microstructural analysis revealed distinct gradation patterns, with plasma-sprayed beams exhibiting a layered gradation. The thermo-elastic behavior of FGM, along with pure SUS316 beams, was evaluated under thermal loads ranging from 2.925 W to 23.9 W. The SUS316-Al2O3 FGM beams displayed elastic deflection at higher thermal loads, indicating their potential for high-performance applications. A 2.23% decrease in frequency and thermal deflection of 0.6 mm was observed when the beam was heated to a temperature of 890C for about 5 min. The findings suggest that functionally graded SUS316-Al2O3 beams offer enhanced thermo-elastic properties, making them suitable for demanding applications requiring high-temperature resistance and strength. © The Society for Experimental Mechanics, Inc 2025.