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Geomechanics and Engineering
  Volume 21, Number 1, April10 2020, pages 85-93
DOI: https://doi.org/10.12989/gae.2020.21.1.085
 


Fractional order thermoelastic wave assessment in a two-dimension medium with voids
Aatef D. Hobiny and Ibrahim A. Abbas

 
Abstract
     In this article, the generalized thermoelastic theory with fractional derivative is presented to estimate the variation of temperature, the components of stress, the components of displacement and the changes in volume fraction field in two-dimensional porous media. Easily, the exact solutions in the Laplace domain are obtained. By using Laplace and Fourier transformations with the eigenvalues method, the physical quantities are obtained analytically. The numerical results for all the physical quantities considered are implemented and presented graphically. The results display that the present model with the fractional derivative is reduced to the Lord and Shulman (LS) and the classical dynamical coupled (CT) theories when the fractional parameter is equivalent to one and the delay time is equal to zero and respectively.
 
Key Words
    fractional derivative; Laplace-Fourier transforms; porous medium; eigenvalues approach
 
Address
Aatef D. Hobiny: Nonlinear Analysis and Applied Mathematics Research Group (NAAM), Department of Mathematics,
King Abdulaziz University, Jeddah, Saudi Arabia

Ibrahim A. Abbas: 1.) Nonlinear Analysis and Applied Mathematics Research Group (NAAM), Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia
2.) Department of mathematics, Faculty of Science, Sohag University, Sohag, Egypt
 

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