基于Moore-Gibson-Thompson热方程的非局部双曲双温微极热弹性问题数学建模

IF 1.1 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY Canadian Journal of Physics Pub Date : 2023-07-25 DOI:10.1139/cjp-2022-0339
Rajneesh Kumar, S. Kaushal, A. Kochar
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摘要

本文的目的是研究非局部和双曲双温度(HTT)参数影响下,基于Moore-Gibson-Thompson热方程的均匀、各向同性、微极热弹性半空间的热力变形问题。通过将控制方程简化为二维,然后将其转换为无量纲形式,将所考虑的模型表述为问题。利用拉普拉斯变换和傅立叶变换技术得到微分方程组。在变换域中,计算边界表面特定法向力和热源类型下的位移分量、应力、热力学温度、导电温度等物理量。利用数值反演技术对物理域方程进行复原,以图的形式显示非局部和HTT的影响。在本问题中还讨论了一些特别的问题。目前的研究在工程和科学、控制理论、振动力学和连续介质力学的广泛问题中得到了应用。
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Mathematical modelling of micropolar thermoelastic problem with nonlocal and hyperbolic two-temperature based on Moore–Gibson–Thompson heat equation
The aim of this article is to study a problem of thermomechanical deformation in a homogeneous, isotropic, micropolar thermoelastic half-space based on the Moore–Gibson–Thompson heat equation under the influence of nonlocal and hyperbolic two-temperature (HTT) parameters. The problem is formulated for the considered model by reducing the governing equations into 2D and then converting to dimensionless form. Laplace transform and Fourier transform techniques are employed to obtain the system of differential equations. In the transformed domain, the physical quantities like displacement components, stresses, thermodynamic temperature, and conductive temperature are calculated under the specific types of normal force and thermal source at the boundary surface. A numerical inversion technique is used to recuperate the equations in the physical domain to exhibit the influence of nonlocal and HTT in the form of graphs. Particular cases of interest are also discussed in the present problem. The present study finds applications in a wide range of problems in engineering and sciences, control theory, vibration mechanics, and continuum mechanics.
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来源期刊
Canadian Journal of Physics
Canadian Journal of Physics 物理-物理:综合
CiteScore
2.30
自引率
8.30%
发文量
65
审稿时长
1.7 months
期刊介绍: The Canadian Journal of Physics publishes research articles, rapid communications, and review articles that report significant advances in research in physics, including atomic and molecular physics; condensed matter; elementary particles and fields; nuclear physics; gases, fluid dynamics, and plasmas; electromagnetism and optics; mathematical physics; interdisciplinary, classical, and applied physics; relativity and cosmology; physics education research; statistical mechanics and thermodynamics; quantum physics and quantum computing; gravitation and string theory; biophysics; aeronomy and space physics; and astrophysics.
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