热电半空间的瞬态记忆响应与温度相关的热导率和指数梯度模量

IF 4 3区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Steel and Composite Structures Pub Date : 2021-01-01 DOI:10.12989/SCS.2021.38.4.447
M. Ezzat
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引用次数: 1

摘要

在这项工作中,我们考虑了一个具有半空间记忆相关导数的热电材料的问题,该空间假定具有随温度变化的热导率。将半空间材料的拉梅模量作为与介质表面垂直距离的函数。表面是无牵引力的,并受到时间相关的热冲击。采用拉普拉斯变换法结合微扰技术解决了这一问题。讨论了所得结果,并与拉梅模量为常数时的解进行了比较。计算了温度、位移和应力分布的数值结果,并用图形表示。进行了影响性调查,以探讨核函数和时滞参数的热影响,这是记忆依赖的导数传热在组织温度行为中的特征。在没有记忆相关的导数参数的情况下,得到了相关的结果。
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Transient memory response of a thermoelectric half-space with temperature-dependent thermal conductivity and exponentially graded modulii
In this work, we consider a problem in the context of thermoelectric materials with memory-dependent derivative for a half space which is assumed to have variable thermal conductivity depending on the temperature. The Lame's modulii of the half space material is taken as a function of the vertical distance from the surface of the medium. The surface is traction free and subjected to a time dependent thermal shock. The problem was solved by using the Laplace transform method together with the perturbation technique. The obtained results are discussed and compared with the solution when Lame's modulii are constants. Numerical results are computed and represented graphically for the temperature, displacement and stress distributions. Affectability investigation is performed to explore the thermal impacts of a kernel function and a time-delay parameter that are characteristic of memory dependent derivative heat transfer in the behavior of tissue temperature. The correlations are made with the results obtained in the case of the absence of memory-dependent derivative parameters.
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来源期刊
Steel and Composite Structures
Steel and Composite Structures 工程技术-材料科学:复合
CiteScore
8.50
自引率
19.60%
发文量
0
审稿时长
7.5 months
期刊介绍: Steel & Composite Structures, An International Journal, provides and excellent publication channel which reports the up-to-date research developments in the steel structures and steel-concrete composite structures, and FRP plated structures from the international steel community. The research results reported in this journal address all the aspects of theoretical and experimental research, including Buckling/Stability, Fatigue/Fracture, Fire Performance, Connections, Frames/Bridges, Plates/Shells, Composite Structural Components, Hybrid Structures, Fabrication/Maintenance, Design Codes, Dynamics/Vibrations, Nonferrous Metal Structures, Non-metalic plates, Analytical Methods. The Journal specially wishes to bridge the gap between the theoretical developments and practical applications for the benefits of both academic researchers and practicing engineers. In this light, contributions from the practicing engineers are especially welcome.
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