Thermally-Induced Stresses in a Pre-Buckling State of a Circular Plate within the Fractional-Order Framework

Authors : G. Dhameja, L. Khalsa, Vinod Varghese

Pages : 46-55

Doi:10.5541/ijot.1170364

View : 46 | Download : 51

Publication Date : 2023-06-01

Article Type : Research Article

Abstract :This paper considers a transient thermoelastic problem in an isotropic homogeneous elastic thin circular plate with clamped edges subjected to thermal load within the fractional-order theory framework. The prescribed ramp-type surface temperature is on the plate\'s top face, while the bottom face is kept at zero. The three-dimensional heat conduction equation is solved using a Laplace transformation and the classical solution method. The Gaver–Stehfest approach was used to invert Laplace domain outcomes. The thermal moment is derived based on temperature change, and its bending stresses are obtained using the resultant moment and resultant forces per unit length. The results are illustrated by numerical calculations considering the material to be an Aluminum-like medium, and corresponding graphs are plotted.
Keywords : Heat conduction, thin circular plate, thermal deflection, thermal stresses, integral transform, fractional-order derivatives