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Structural Engineering and Mechanics Volume 93, Number 3, February10 2025 , pages 221-229 DOI: https://doi.org/10.12989/sem.2025.93.3.221 |
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Research on free vibration of axially functionally graded graphene platelet reinforced composite beams in thermal environment |
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Amit Kumar Gantayat, Sudhir Kumar Yadav, Mihir Kumar Sutar and Sarojrani Pattnaik
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| Abstract | ||
| This paper investigates the fundamental frequency analysis of Axially Functionally Graded Graphene Platelets Reinforced Composite (AFG-GPLRC) beams in thermal environments. The graphene platelets are dispersed in five different patterns (UD, AFG-X, O, A, V) along the axis, either uniformly or non-uniformly. The effective material properties are determined using an improved Halpin-Tsai micromechanical model and the Rule of mixture. The governing equation, derived from the Euler-Bernoulli beam theory, is solved using the weighted residue method (Galerkin's method) to obtain element matrices. The accuracy of the analysis is confirmed by comparing the results with existing solutions. A comprehensive parametric study is conducted to investigate the impact of distribution patterns, graphene content, geometric parameters, and temperature changes on the free vibration behaviour of AFG-GPLRC beams. Due to the low graphene content used, the thermal properties of AFG-GPLRC were not significantly affected, and a significant decrease in the fundamental natural frequency was observed when the beam underwent a temperature change. This effect was consistent regardless of the boundary condition and distribution pattern. | ||
| Key Words | ||
| axially functionally graded graphene-reinforced composite; beams; natural frequency; thermal loads | ||
| Address | ||
| Amit Kumar Gantayat, Sudhir Kumar Yadav, Mihir Kumar Sutar and Sarojrani Pattnaik: Mechanical Engineering Department, Veer Surendra Sai University of Technology Burla, India | ||