Fractional order and memory-dependent analysis to the dynamic response of a bi-layered structure due to laser pulse heating
Li, Yan; Zhang, Pei; Li, Chenlin; He, Tianhu
2019-12
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN0017-9310
Volume144
AbstractUltrashort laser technology has been widely used in micro-machining due to its high power, precision of operation, low cost, high control and extremely short duration. This motivates us to investigate the transient response of a bi-layered structure subjected to a non-Gaussian laser beam on its bounding surface in the context of the time-fractional derivative based on generalized thermoelastic theories. Comparison studies between the fractional order and the memory-dependent derivative models are performed and the thermal contact resistance at the interface is also considered. The coupled governing equations involving with thermal relaxation time, fractional order parameter, time delay and kernel function, which can be chosen freely according to specific problems, are solved by using Laplace transform technique together with its numerical inversion. During the analysis, the first layer is selected as the copper material and the material characteristic parameters of the second layer such as the thermal conductivity, mass density and specific heat capacity are given by ratios to those of the first layer. The influences of the material characteristic parameters on the heat conduction and the structural responses are emphatically discussed, and the non-dimensional temperature, displacement as well as stress at different values of fractional order parameter, time delay factor, kernel function and thermal contact resistance are obtained and illustrated graphically. Finally, based on the obtained results, the bi-layered structure heated by a non-Gaussian laser beam may be reasonably designed in engineering. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordGeneralized thermoelasticity Fractional order Memory-dependent derivative Non-Gaussian laser pulse Bi-layered structure
DOI10.1016/j.ijheatmasstransfer.2019.118664
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11372123]
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000494883300060
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64206
Collection研究生院
经济管理学院
Corresponding AuthorHe, Tianhu
AffiliationLanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationColl Sci
Corresponding Author AffilicationColl Sci
First Signature AffilicationColl Sci
Recommended Citation
GB/T 7714
Li, Yan,Zhang, Pei,Li, Chenlin,et al. Fractional order and memory-dependent analysis to the dynamic response of a bi-layered structure due to laser pulse heating[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2019,144.
APA Li, Yan,Zhang, Pei,Li, Chenlin,&He, Tianhu.(2019).Fractional order and memory-dependent analysis to the dynamic response of a bi-layered structure due to laser pulse heating.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,144.
MLA Li, Yan,et al."Fractional order and memory-dependent analysis to the dynamic response of a bi-layered structure due to laser pulse heating".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 144(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Usage statistics
Google Scholar
Similar articles in Google Scholar
[Li, Yan]'s Articles
[Zhang, Pei]'s Articles
[Li, Chenlin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Yan]'s Articles
[Zhang, Pei]'s Articles
[Li, Chenlin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Yan]'s Articles
[Zhang, Pei]'s Articles
[Li, Chenlin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.