Structural Engineering and Mechanics

Volume 73, Number 6, 2020, pages 725-735

DOI: 10.12989/sem.2020.73.6.725

Time harmonic interactions in an orthotropic media in the context of fractional order theory of thermoelasticity

Parveen Lata and Himanshi Zakhmi

Abstract

The present investigation deals with the thermomechanical interactions in an orthotropic thermoelastic homogeneous body in the context of fractional order theory of thermoelasticity due to time harmonic sources. The application of a time harmonic concentrated and distributed sources has been considered to show the utility of the solution obtained. Assuming the disturbances to be harmonically time dependent, the expressions for displacement components, stress components and temperature change are derived in frequency domain. Numerical inversion technique has been used to determine the results in physical domain. The effect of frequency on various components has been depicted through graphs.

Key Words

orthotropic medium; fractional calculus; frequency domain; fourier transform; concentrated and uniformly distributed loads

Address

Department of Basic and Applied Sciences, Punjabi University Patiala, Punjab, India