Research ArticleNo Access

Temperature-Dependent Vibration Characteristics of Porous FG Material Plates Utilizing FSDT

V. Kumar

Mechanical Engineering Department, Engineering College, Bikaner, India

E-mail Address: vineetrana81@gmail.com

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S. J. Singh

Department of Mechanical Engineering, NSUT, Delhi, India

E-mail Address: simranjeet.singh@nsut.ac.in

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, and

S. P. Harsha

https://orcid.org/0000-0003-4749-9892

Noise and Vibration Lab, MIED, IIT Roorkee, India

E-mail Address: surajfme@iitr.ac.in

Corresponding author.

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https://doi.org/10.1142/S021945542450072XCited by:0 (Source: Crossref)

Abstract

This study focuses on the vibration characteristics of the functionally graded materials (FGMs) porous plate. The plate is to be supported on different boundary constraints with linearly varying thicknesses. Existence of different porosity (void) pattern, within the materials, are taken into consideration using the power (P-FGM) and sigmoidal (S-FGM) gradation laws. The current methodology was developed utilizing the FSDT (first-order shear deformation theory) under thermal environmental conditions. Variations of temperature like as uniform, linearly varying, and nonlinear distribution patterns were examined by including temperature-dependent and independent material properties. The equations of motion including all the effects are derived from Hamilton’s principle and, subsequently solved using the Galerkin’s Vlasov method for various plate boundary conditions. Finally, the analytical outcomes are verified numerically, with the existing works. Furthermore, the study demonstrates that the fundamental frequency of porous FGM tapered plate is very close to the result obtained by the other researchers. Moreover, a detailed examination has been carried out to reveal the effect of various factors such as volume exponent index ( $ℕ)$ , side-to-thickness ratio ( $a$ / $h)$ , and temperature effect ( $T)$ . In addition to this, some new benchmark results are obtained for free vibration analysis of tapered plates under a thermal environment.

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