June 2025
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5 Reads
Mechanics of Solids
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Publications (32)
June 2025
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3 Reads
International Communications in Heat and Mass Transfer
June 2025
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1 Read
Mechanics of Solids
May 2025
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4 Reads
Journal of Non-Equilibrium Thermodynamics
This paper addresses the theoretical analysis of a piezothermoelastic problem involving an unbounded thermopiezoelectric medium with a spherical cavity subjected to pulse heating flux. The generalized piezo-thermo-elastic formulations of Lord and Shulman with thermal relaxation effects are used in this work. Unlike previous studies, which often consider simplified boundary conditions or steady-state thermal loading, our work incorporates generalized piezo-thermo-elastic formulations based on the Lord and Shulman model, accounting for thermal relaxation effects under dynamic thermal loading conditions. The numerical solution of the governing equations is done using the finite element approach, and temporal evolution is solved using the implicit scheme. New numerical results provide insight into the dynamic behavior of the piezoelectric medium subjected to thermal conditions. Thermal relaxation time and pulse heating flux are analyzed in their influence on the coupled thermal, mechanical and electrical fields and, thus, on the response of the system.
May 2025
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18 Reads
Curved and Layered Structures
The transient response of thermoelastic materials subjected to a time-decaying thermal field is presented in this article using a nonlinear analysis. The basic equations provided are based on a generalized thermoelastic model under changing thermal conductivity, which is incorporated into the formulations. This problem is solved using the finite-element techniques instead of the Kirchhoff transforms since solving non-linear equations is quite difficult. Laplace transformation and the eigenvalue approaches are used to solve the problems in the linear context of the Kirchhoff transforms. The study investigates and compares the impact of varying thermal conductivity both with and without employing Kirchhoff’s transform. The numerical outputs are graphically shown to display the displacement, temperature, and stress variations.
May 2025
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9 Reads
The growing threat of cyberattacks is a severe concern to governments, military organizations, and industries, especially with the increasing use of Internet of Things (IoT) devices. To tackle this issue, researchers are working on ways to predict and prevent these attacks by studying how malware spreads. In this study, we use a discrete-time approach to better model how cyberattacks spread across IoT networks. We also focus on the role of firewalls, developing a strategy to optimize their effectiveness in slowing down the spread of malware. Additionally, we analyze the reproduction number’s sensitivity and explore the proposed discrete system’s local and global stability. The model was simulated and analyzed using Python packages, providing practical solutions to improve cybersecurity in IoT networks. These insights are supported by numerical simulations based on real-world data.
May 2025
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7 Reads
Case Studies in Thermal Engineering
May 2025
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9 Reads
Journal of Thermal Biology
April 2025
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9 Reads
Mechanics of Solids
April 2025
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9 Reads
Mechanics of Solids
Citations (7)
... The influence of fractional calculus on thermal therapy modeling was addressed by Alsisi et al. [49], who applied a fractional-order approach to simulate thermomechanical effects in two-dimensional biological tissues during hyperthermia treatment. Expanding on this, Almuneef et al. [50] analyzed thermomechanical behavior in biological tissues under non-dissipative conditions, contributing to the understanding of energy-efficient thermal processes in biomedical applications. Collectively, these studies underscore the growing importance of incorporating fractional derivatives, graded material properties, and laser-induced effects in analyzing wave propagation and thermal response across diverse engineering and biomedical domains. ...
- Citing Article
February 2025
Case Studies in Thermal Engineering
... For instance, Hrytsyna and Hrytsyna [32] examine thermoelastic damping in piezothermoelastic nanobeam resonators by employing strain gradient theory and non-Fourier heat conduction. Similarly, Alqahtani et al. [33] investigate the effects of Atangana-Baleanu fractional derivatives on piezothermoelectric rods subjected to thermal shock. The role of external fields and sophisticated thermal models is another prominent focus, as demonstrated by Alshehri and Lotfy [34] in their analysis of Hall current and acoustic pressure effects on a thermoelastic plate under ramp-type heating within a two-temperature framework. ...
- Citing Article
March 2025
Results in Engineering
... When modeling real-world occurrences, fractional derivatives and fractional integrals yield better results than classical derivatives due to several important properties, including hereditary features, so that the state of the considered system depends on all historical states, and an extra degree of freedom included in the change in fractional order α [22][23][24]. The Caputo fractional derivative (CFD) [25] is best for modeling scenarios involving fractional derivatives, where it is employed in different fields such as chaos theory, engineering, computer science, biology, and others (see [26][27][28][29][30]). Furthermore, FOMs provide innovative approaches to characterizing memory effects and identifying these effects on the behavior of solutions. ...
- Citing Article
- Full-text available
December 2024
... Using novel methodologies, Grace et al. [11] demonstrated sophisticated findings on the oscillation of delay equations at the fourth order. Graef et al. [12], Xing et al. [13], Alnafisah et al. [14], and Alqahtan et al. [15] expanded on the knowledge of the oscillation of delay neutral equations for higher orders. ...
- Citing Article
- Full-text available
November 2024
... Alqahtani et al. [22] established asymptotic behavior for equations with several delays ...
- Citing Article
- Full-text available
August 2024
... Photothermal semiconductor elastic materials, which often include semiconductors like silicon or gallium arsenide, exhibit distinct behaviors where the absorption of light triggers both thermal and mechanical effects [15]. The photothermal effect converts absorbed photon energy into heat, leading to thermal expansion and mechanical deformations. ...
- Citing Article
- Publisher preview available
July 2024
Silicon
... Irfan and Shah [40] solved fractional bioheat transfer model using Fibonacci wavelet method. Abbas et al. [41] and Alqahtani et al. [42] studied thermo-mechanical interactions in skin tissue using eigenvalue approach. Marin et al. [43] and Saeed and Abbas [44] presented finite element analysis of DPL model in presence of external thermal source and validated with experimental data. ...
- Citing Article
May 2024
Indian Journal of Physics
