Thermal Buckling Analysis of Axially Layered Functionally Graded Thin Beams under Clamped-Clamped Boundary Conditions

Year 2019, Volume: 22 Issue: 4, 1069 - 1074, 01.12.2019

Savaş Evran

https://doi.org/10.2339/politeknik.498684

Abstract

In the present article, the critical buckling
temperature of axially layered functionally graded thin beams for the first
mode was studied under clamped-clamped boundary conditions. The beams were made
to be three layers using functionally graded materials with ceramic and metal
systems in the axial direction. Analyses were performed using finite element
and Taguchi methods. The beam configurations were designed based on Taguchi L₉
orthogonal array in order to detect the maximum critical buckling
temperature and were analyzed using finite element software ANSYS. Analysis of
signal-to-noise ratio was utilized to determine the layers with optimum levels
and the influence of ceramic and metal materials in each layer. Analysis of
Variance at the 95 % confidence level was employed in order to select the most
significant layers and their percent contribution on response characteristic.
The optimum result of the critical buckling temperature was predicted based on
the 95 % confidence intervals of confirmation analysis and population. 

Keywords

Thermal buckling, functionally graded materials, finite element analysis, beam

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