 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
|
| In English (Mech. Solids): | | 5360 |
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| Areej Almuneef, Munirah Alotaibi, Shreen El-Sapa, Khaled Lotfy, and Alaa A. El-Bary, "Nonlocal Photo-Thermoelastic Response of a Moisture-Diffusive Plate under Ramp Heating," Mech. Solids. 60 (7), 6505-6525 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
6505-6525 |
| DOI |
10.1134/S0025654425605592 |
| Title |
Nonlocal Photo-Thermoelastic Response of a Moisture-Diffusive Plate under Ramp Heating |
| Author(s) |
Areej Almuneef (Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671 Saudi Arabia, aaalmoneef@pnu.edu.sa)
Munirah Alotaibi (Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671 Saudi Arabia, maalotaiby@pnu.edu.sa)
Shreen El-Sapa (Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671 Saudi Arabia, seelsapa@pnu.edu.sa)
Khaled Lotfy (Department of Mathematics, Faculty of Science, Zagazig University, Zagazig, Egypt; National Committee for Mathematics, Academy of Scientific Research and Technology, Cairo, Egypt, khlotfy_1@yahoo.com)
Alaa A. El-Bary (Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt; Council of Future Studies and Risk Management, Academy of Scientific Research and Technology, Cairo, Egypt, aaelbary@aast.edu) |
| Abstract |
This study presents a theoretical and analytical model for the dynamic behavior of a nonlocal photo-thermoelastic semiconductor plate incorporating moisture diffusion and subjected to ramptype heating. The formulation couples photoexcited carrier density, heat conduction, and moisture
transport with Eringen’s nonlocal elasticity, enabling the analysis of size-dependent effects relevant to
nanoscale devices. The governing equations are expressed in a dimensionless form and solved analytically using Laplace and Fourier transformations, yielding exact expressions for displacement, stress,
temperature, carrier density, and moisture fields. The results show that ramp-type heating smooths
transient responses and mitigates thermal shocks, while nonlocal elasticity markedly reduces stress
magnitudes, delays wave propagation, and alters dispersion characteristics, leading to enhanced stability and energy dissipation at the nanoscale. The analysis further reveals that coupled photo-thermo-elastic–moisture interactions significantly influence wave attenuation and field oscillations, demonstrating the necessity of including nonlocal and diffusive effects for accurate predictions. These findings provide new insights into the design and optimization of micro- and nano-scale semiconductor
devices, including photonic sensors, optoelectronic systems, and thermal management structures. |
| Keywords |
nonlocal elasticity, photo-thermoelasticity, moisture diffusion, semiconductor plate, wave propagation, nano-scale effects |
| Received |
08 October 2025 | Revised |
02 November 2025 | Accepted |
04 November 2025 |
| Link to Fulltext |
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