We prove the existence and uniqueness of a solution to a system of equations describing the evolution of a linear thermoelastic body by using a semi-group method. Moreover, the uniform exponential stability of the solution is shown in a particular case.•With respect to the existence and uniqueness of the solution, we have defined a linear operator which generates a contraction semi-group and show that it is monotone maximal.•With respect to the stability of the system, we have computed explicitly the expression of the solution of the system and show that the semi-group is uniformly exponentially stable in a particular case.
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http://dx.doi.org/10.1016/j.mex.2022.101983 | DOI Listing |
MethodsX
December 2024
Universite Cardi Ayyad, Facultedes Sciences Semlalia, Departement De Mathematiques, B.P.2390, Marrakesh, Morocco.
[This corrects the article DOI: 10.1016/j.mex.
View Article and Find Full Text PDFOpen Res Eur
December 2024
Faculty of Physics, University of Vienna, Vienna, Vienna, 1090, Austria.
Background: Elastic deformations of gravitating cylindrical bodies are relevant for state-of-the-art photonic experiments, as they affect the physical properties of materials under consideration, impacting wave propagation. This is of key importance for a recently planned experiment to explore the influence of the gravitational field on entangled photons propagating in waveguides. The purpose of this work is to determine these elastic deformations as functions of temperature, pressure, and of the gravitational field.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
August 2024
Lavrentyev Institute of Hydrodynamics, Siberian Branch of the Russian Academy of Sciences, Pr. Acad. Lavrentyeva 15, Novosibirsk 630090, Russia.
The dynamical problem of linear thermoelasticity for a body with incorporated thin rectilinear inclusions is studied. It is assumed that the inclusions (i.e.
View Article and Find Full Text PDFJ Chem Phys
June 2024
International School for Advanced Studies (SISSA), Via Bonomea 265, 34136 Trieste, Italy.
We present the ab initio thermoelastic properties of body-centered cubic molybdenum under extreme conditions obtained within the quasi-harmonic approximation including both the vibrational and electronic thermal excitation contributions to the free energy. The quasi-harmonic temperature-dependent elastic constants are calculated and compared with existing experiments and with the quasi-static approximation. We find that the quasi-harmonic approximation allows for a much better interpretation of the experimental data, confirming the trend found previously in other metals.
View Article and Find Full Text PDFUltrasonics
July 2024
Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China; College of Mechanical and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
Far-field laser technology has greatly promoted the progress of nondestructive ultrasonic imaging of bulk structures. However, under thermoelastic excitation, the body waves exhibit a relatively low signal-to-noise ratio, resulting in images with low resolution and contrast. Based on the motivation, this paper developed a frequency-domain phase weighted imaging method to improve the quality of laser ultrasonic defect imaging.
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