Version 1
: Received: 22 May 2023 / Approved: 24 May 2023 / Online: 24 May 2023 (02:39:07 CEST)
How to cite:
Fahmy, M.A.; Othman, M.I.A.; Abd-Elaziz, E.M. Effect of Diffusion and Laser Pulse on a Poro-Thermoelastic Medium via Three-Phase-Lag Model. Preprints2023, 2023051670. https://doi.org/10.20944/preprints202305.1670.v1
Fahmy, M.A.; Othman, M.I.A.; Abd-Elaziz, E.M. Effect of Diffusion and Laser Pulse on a Poro-Thermoelastic Medium via Three-Phase-Lag Model. Preprints 2023, 2023051670. https://doi.org/10.20944/preprints202305.1670.v1
Fahmy, M.A.; Othman, M.I.A.; Abd-Elaziz, E.M. Effect of Diffusion and Laser Pulse on a Poro-Thermoelastic Medium via Three-Phase-Lag Model. Preprints2023, 2023051670. https://doi.org/10.20944/preprints202305.1670.v1
APA Style
Fahmy, M.A., Othman, M.I.A., & Abd-Elaziz, E.M. (2023). Effect of Diffusion and Laser Pulse on a Poro-Thermoelastic Medium via Three-Phase-Lag Model. Preprints. https://doi.org/10.20944/preprints202305.1670.v1
Chicago/Turabian Style
Fahmy, M.A., Mohamed I. A. Othman and Elsayed M. Abd-Elaziz. 2023 "Effect of Diffusion and Laser Pulse on a Poro-Thermoelastic Medium via Three-Phase-Lag Model" Preprints. https://doi.org/10.20944/preprints202305.1670.v1
Abstract
The purpose of this paper is to study the influence of diffusion and thermal loading due to pulsed laser heating on a thermoelastic solid with voids in the context of the model of three-phase-lag. The non-dimensional governing equations are formulated and then the exact expressions for the temperature field, the displacement components, the stress components, the concentration field and the change in the volume fraction field are obtained using the normal mode technique. The material is an isotropic, homogeneous elastic half-space and heated by a non-Gaussian laser beam with pulse duration of ps. The magnesium crystal element is used as an application to compare the predictions induced by diffusion and laser pulse on poro-thermoelastic medium of the model of three-phase-lag with those for the theory of Green–Naghdi of type III. The results obtained for thermal changes are verified by comparison with two theories of thermoelasticity, namely the model of three-phase lag (3PHL) and the Green and Nagdi type III theory. Plot the expressions to examine the effect of the laser pulse at two different values of time and the effect void parameter. This study also yields some interesting special cases.
Keywords
Three-phase-lag model; Laser pulse; Diffusion; Voids; Normal mode analysis
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
