Article
Engineering, Multidisciplinary
Hamdy M. Youssef, Alaa A. El-Bary
Summary: This paper investigates the photothermal interaction of a rotating semi-conducting solid cylinder according to Lord-Shulman's generalized thermoelasticity theory. The study reveals that the mechanical relaxation time and angular velocity parameter have minimal effects on carrier density and temperature increment, but significant effects on strain, stress, and stress-strain energy. The lifetime parameter of the photogenerated carrier has essential implications on all studied functions.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Engineering, Multidisciplinary
Dinesh Kumar Sharma, Mahesh Kumar Sharma, Nantu Sarkar
Summary: This study investigates the effects of generalized thermoelasticity's three-phase-lag (TPL) model on the analysis of three-dimensional free vibrations of viscothermoelastic solid cylinder. The results, presented graphically, show how vibration behavior changes with the increase in axial wave-number and length to radius ratio, as well as the comparison with other models of generalized thermoelasticity.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Physics, Multidisciplinary
A. M. Zenkour, A. E. Abouelregal
Summary: The study introduces the photo-thermoelasticity theory with phase lags applied to an infinite semiconductor body in the form of a solid cylinder. Utilizing numerical methods, analytical formulae for physical quantities are found, with an analysis of the effects of phase lags and thermal vibration frequency on various parameters.
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2021)
Article
Physics, Multidisciplinary
E. Awwad, Ahmed E. Abouelregal, Doaa Atta, Hamid M. Sedighi
Summary: This work presents an analytical approach to study the photothermal response of a functionally graded semiconducting thermoelastic half-space. The interaction between heat-elastic plasma waves is described in the context of photothermal transitional model, and the distribution of each field variable as well as the spread of thermo-elastic-plasma waves are examined.
Article
Physics, Multidisciplinary
Ahmed E. Abouelregal, Hijaz Ahmad, Ahmed M. H. Yahya, Anouar Saidi, Husam Alfadil
Summary: Understanding thermal diffusion through elastic materials is important for linking temperature, strain, and mass diffusion. Traditional models have flaws, so a new model is proposed with extended equations for heat conduction and mass diffusion. The model is applied to investigate thermoelastic diffusion in solid materials, and numerical results are used to show the thermodiffusion fields.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Mathematics, Interdisciplinary Applications
Eman A. N. Al-Lehaibi
Summary: This work presents a new thermoelastic model for an isotropic and homogeneous annular cylinder. The inner surface of the cylinder is subjected to thermal shock, while the outer surface remains with no change in temperature and volumetric strain. The governing equations of the model, based on the hyperbolic two-temperature generalized thermoelasticity with fractional-order strain theory, have been derived. Numerical solutions are used to illustrate the effects of fractional-order and two-temperature parameters on the thermal and mechanical waves, including the distributions of temperature, displacement, strain, and stress.
FRACTAL AND FRACTIONAL
(2023)
Article
Mechanics
Hamdy M. Youssef, Eman A. N. Al-Lehaibi
Summary: This paper presents the construction of a two-dimensional mathematical model for a thermoelastic solid cylinder and investigates the effects of parameters on temperature, strain, and stress. It is found that the damage mechanics variable has a significant impact on strain and stress distributions.
ARCHIVE OF APPLIED MECHANICS
(2022)
Article
Thermodynamics
Ahmed E. Abouelregal, Hamid M. Sedighi, Victor A. Eremeyev
Summary: This article proposes a photothermal model to study the thermo-magneto-mechanical properties of semiconductor materials. The model takes into account the optical heating through the semiconductor medium and uses a more reliable theoretical framework to describe the optical and heat transfer properties of these materials. Numerical calculations and analysis are used to investigate the effects of thermal parameters, electromagnetic fields, laser pulses, and thermoelectric coupling factors on the thermomagnetic behavior of the materials.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Article
Multidisciplinary Sciences
Merfat H. Raddadi, Kh. Lotfy, A. El-Bary, N. Anwer, R. S. Tantawi
Summary: A novel model in photo-thermoelasticity theory with microstretch properties is studied, where plasma-elastic-thermal plane waves are propagated in a linear isotropic generalized photo-thermo-microstretch elastic semiconductor solid medium. The analytical solution of main physical fields can be obtained using harmonic wave techniques.
JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE
(2021)
Article
Mathematics
Mohsen Fayik, Sharifah E. E. Alhazmi, Mohamed A. A. Abdou, Emad Awad
Summary: The present study estimates the thermal stress distribution and displacement vector inside a nano-thick infinite plate subjected to exponential boundary heating on the front surface. Three different models of thermal transport were considered, and their main features were analyzed. The derived expressions for thermal and mechanical wave speeds show that the modified hyperbolic dual-phase-lag model has the fastest thermal wave speed, while the Lord-Shulman model has the slowest thermal wave speed.
Article
Thermodynamics
Ali M. Mubaraki, Saad Althobaiti, R. I. Nuruddeen
Summary: This study investigates the interactive nature of the wave and temperature field in an infinite thermoelastic coaxial solid cylinder. It is found that the presence of the absorption coefficient and laser power intensity in the laser heating source exponentially increases both the displacements and temperature fields, while the existence of more laser parameters serves as a controlling factor.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Food Science & Technology
L. Astrain-Redin, J. Moya, M. Alejandre, E. Beitia, J. Raso, B. Calvo, G. Cebrian, I Alvarez
Summary: The study showed that regulating the electrode temperature can reduce temperature differences, increase the uniformity of heat treatment, and improve microbial inactivation effectiveness.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Frank C. De Lucia, Steven W. Dean, Jennifer L. Gottfried
Summary: In this study, we used nanosecond laser pulses to rapidly heat aluminum powders and analyzed the oxidation process by monitoring AlO emission. The results showed that nanoscale aluminum powders released energy at a faster rate, as indicated by the increased shock velocities.
Article
Polymer Science
Andrii Kondratiev, Vaclav Pistek, Oleksii Vambol, Pavel Kucera
Summary: This paper discusses the development of a method to predict the residual stress-strain behavior of composite materials. The method establishes the relationship between molding process parameters and the distribution of the temperature field, stresses, and strains in the molded product. Experimental studies show that the heating rate affects the amount of residual deformation, with higher heating rates resulting in larger deflections.
Article
Chemistry, Physical
Luis Miaja-Avila, Benjamin W. Caplins, Ann N. Chiaramonti, Paul T. Blanchard, Matt D. Brubaker, Albert Davydov, David R. Diercks, Brian P. Gorman, Ashwin Rishinaramangalam, Daniel F. Feezell, Kris A. Bertness, Norman A. Sanford
Summary: The research demonstrates that extreme ultraviolet (EUV) radiation pulsed atom probe tomography can trigger controlled field ion evaporation from III-nitride samples and exhibit stability in measuring chemical compositions. The magnesium doping concentration values obtained through EUV APT are in agreement with those obtained by other characterization techniques. The low EUV photon fluence used in these measurements suggests a different ion evaporation mechanism than the commonly accepted bulk thermal model.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Computer Science, Interdisciplinary Applications
Ahmed E. Abouelregal, Hamid M. Sedighi
Summary: This paper introduces a modified constitutive equation that incorporates the size effect of nanostructured materials and a new formulation of Fourier's law with Caputo-Fabrizio fractional heat conduction equation. The Kelvin-Voigt model is used to characterize the viscoelastic behavior of materials. The presented model is applied to analyze the magneto-thermoelastic interactions in a viscoelastic rotating rod subject to a moving heat source.
ENGINEERING WITH COMPUTERS
(2023)
Article
Mechanics
Ahmed E. Abouelregal, Osama Moaaz, Khalil M. Khalil, Mohamed Abouhawwash, Mohamed E. Nasr
Summary: According to the concept of small polar thermoelasticity, this study investigates the effects of rotational and translational motions of elastic materials on aggregate deformations, temperature changes, and microcycles. The two-dimensional electromagnetic micropolar thermoelasticity of an elastic medium subjected to heating and a transverse magnetic field is examined using the higher-order dual phase lag model and the two-temperature theory. Through calculations and numerical comparisons, the study provides expressions and graphical examples of the studied fields, and draws conclusions about the importance of studying advanced thermoelastic systems.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Mechanics
Ahmed E. Abouelregal
Summary: This article investigates the thermoelastic interactions in functionally graded nanobeams. The physical properties of the nanobeam vary in graded according to its thickness. The results show that the gap between classical and nonlocal theories widens with increasing nonlocal parameters and decreasing nanobeam length.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Thermodynamics
Ahmed E. Abouelregal, Hamid M. Sedighi, Victor A. Eremeyev
Summary: This article proposes a photothermal model to study the thermo-magneto-mechanical properties of semiconductor materials. The model takes into account the optical heating through the semiconductor medium and uses a more reliable theoretical framework to describe the optical and heat transfer properties of these materials. Numerical calculations and analysis are used to investigate the effects of thermal parameters, electromagnetic fields, laser pulses, and thermoelectric coupling factors on the thermomagnetic behavior of the materials.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Correction
Physics, Multidisciplinary
A. Soleiman, Ahmed E. Abouelregal, Hijaz Ahmad, Phatiphat Thounthong
Article
Multidisciplinary Sciences
Wael W. W. Mohammed, M. El-Morshedy, Abdelkader Moumen, Ekram E. E. Ali, M. Benaissa, Ahmed E. E. Abouelregal
Summary: In this article, the exact solutions to the fractional-space stochastic (2+1)-dimensional breaking soliton equation (SFSBSE) are obtained using the modified F-expansion method. A variety of exact solutions including trigonometric and hyperbolic functions are derived, extending previously attained results. Matlab is used to plot three-dimensional and two-dimensional diagrams of the exact fractional-stochastic solutions to clarify the influence of multiplicative noise and M-Truncated derivative on the behavior and symmetry of the solutions for the SFSBSE. It is found that a noise term that destroys the symmetry of the solutions increases the solution's stability.
Article
Mechanics
Ahmed E. Abouelregal, Mohamed E. Nasr, Osama Moaaz, Hamid M. Sedighi
Summary: This work aims to analyze the nonuniform heat transfer through a micropolar miniature half-space by investigating the magneto-thermo-viscoelastic interactions. Higher-order two-phase-lag thermoelastic concept and viscoelastic model of Kelvin-Voigt type are considered to examine the micromechanical coupling and the influence of thermo-mechanical relaxation. The governing equations are developed and numerically solved using Laplace transforms, and the consequences of variations in nonlocality, viscoelasticity, and the Hall effect are demonstrated.
Article
Mechanics
Ahmed E. Abouelregal, Rakhi Tiwari, Taher A. Nofal
Summary: The paper investigates the impact of the Seebeck effect on flexible materials by constructing the Moore-Gibson-Thompson heat equation model. By incorporating thermal gradients, charge density, Fourier's law, and current density into Ohm's law, the model examines the behavior of unbounded thermoelastic solid material under a uniform magnetic field and continuous thermal line. The study combines Laplace and Hankel transformational methods with the potential function technique and uses numerical inversion algorithms to analyze the physical fields. Measurements of thermoelectric sensitivity and the coefficient relating current density to heat flux density were also conducted.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Mechanics
Ahmed E. E. Abouelregal, Hamid M. M. Sedighi, Sami F. F. Megahid
Summary: Optical and photo-thermal effects have been studied using the Moore-Gibson-Thompson (MGT) thermoelastic model. The heat conduction law is modified to include fractional order time derivatives, and the system of governing equations is theoretically formulated. The Atangana and Baleanu derivatives are used to consider the features of fractional derivatives. The Laplace transform method is shown to be an effective technique for solving problems related to plasma and heat transfer with phase delays.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Thermodynamics
Ahmed E. Abouelregal, Marin Marin, Andreas Oechsner
Summary: In this article, the modified Moore-Gibson-Thompson heat transfer equation is used to study the thermoelastic interaction induced by non-Gaussian lasers in an infinitely elastic nonlocal medium. The memory-dependent derivative is examined and found to be superior in predicting real-life challenges. The idea of a memory-dependent derivative is attractive due to its peculiarities, such as the freely selectable kernel function and time lag, and the utilization of the non-local concept of Eringen allows for understanding small-scale influence.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Article
Mechanics
Doaa Atta, Ahmed E. Abouelregal, Hamid M. Sedighi, Rasmiyah A. Alharb
Summary: The main objective of this paper is to investigate the relationship between thermal processes and diffusion in thermoelastic solids. A new model that allows thermo-diffusion waves to propagate at finite speeds has been derived. The model is used to investigate a one-dimensional thermodiffusion problem for a homogeneous spherical shell, and analytical expressions for different transformed thermophysical fields are found. The differences between the presented model and previous theories are graphically presented and discussed.
MECHANICS OF TIME-DEPENDENT MATERIALS
(2023)
Article
Engineering, Mechanical
Ahmed E. Abouelregal, Mohamed E. Nasr, Khalil M. Khalil, Mohamed Abouhawwash, Osama Moaaz
Summary: In this study, a novel extended model of a micropolar theory that combines a Dual-phase lag thermoelastic model with a memory-dependent derivative is introduced. The application of this model in a flexible micropolar material under surface pulse laser heating is discussed. The study presents analytical and numerical solutions as well as the general distributions of thermophysical fields, and analyzes the obtained numerical results.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING
(2023)
Article
Mathematics
Ahmed E. Abouelregal, Marin Marin, Sahar M. Abusalim
Summary: By laminating piezoelectric and flexible materials, their performance can be improved. Therefore, the electrical and mechanical properties of layered piezoelectric materials under electromechanical loads and heat sources need to be analyzed theoretically and mechanically. Extended thermoelasticity models have been derived to address the problem of infinite wave propagation, as classical thermoelasticity cannot address this issue. This paper focuses on the thermo-mechanical response of a piezoelectric functionally graded (FG) rod due to a movable axial heat source, using the dual-phase-lag (DPL) heat transfer model. The physical characteristics of the FG rod vary exponentially along the axis of the body. The Laplace transform and decoupling techniques are used to analyze the physical fields obtained. The results are compared with those in previous literature, considering a range of heterogeneity, rotation, and heat source velocity measures.
Article
Mathematics, Applied
Ahmed E. Abouelregal, Bekir Akgoz, Omer Civalek
Summary: The objective of this work is to improve a generalized thermoelastic heat transport framework, which is compatible with observable physical processes and allows speed reduction of heat waves within the solid. The proposed model can be used to derive alternative thermoelasticity models as special cases. The influence of Hall current on magneto-thermoelastic couplings in an infinite conducting viscoelastic medium with a cylindrical cavity under a strong magnetic field is also considered.
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2023)
Article
Mathematics, Applied
Osama Moaaz, Ahmed E. Abouelregal, Fahad Alsharari
Summary: This paper presents a mathematical formulation for transverse resonance of thermoelastic nanobeams that are simply supported and compressed with an initial axial force. The effect of length scale is analyzed using the concept of nonlocal elasticity and the dual-phase-lag heat transfer theory. The nanobeam moves in one direction at a constant speed due to a changing thermal load. The governing motion equation is derived using Hamilton's principle and solved using Laplace transform technique. The impact of nonlocal nanoscale and axial velocity on the responses of the moving beam are investigated, revealing substantial effects of phase delays, nonlocal parameter, and external excitation load on the system behavior.
