Nonlocal dual-phase-lag thermoviscoelastic response of a polymer microbeam incorporating modified couple stress and fractional viscoelastic theories

doi:10.1177/03093247221122691

CORC > 兰州理工大学 > 兰州理工大学 > 研究生院

	Nonlocal dual-phase-lag thermoviscoelastic response of a polymer microbeam incorporating modified couple stress and fractional viscoelastic theories
	Peng, Wei 2; Qi, Zezhang 1; He, Tianhu 1,2
刊名	JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
	2022-09-01
关键词	Thermoviscoelastic response nonlocal dual-phase-lag heat conduction model modified coupled stress theory fractional Kelvin-Voigt model harmonic thermal loading polymer microbeam
ISSN号	0309-3247
DOI	10.1177/03093247221122691
英文摘要	Ultra-slow relaxation process of polymers has the memory-dependent feature, integer-order thermoviscoelastic models may fail to describe the dynamic behaviors of viscoelastic structures accurately. Additionally, it is noticed that the small-scale effect of elastic deformation and heat conduction in a non-isothermal temperature environment is becoming significant due to the development of micro-devices. To better capture the memory-dependent effect and the small-scale effect of viscoelastic micro-structures in heat transfer environment, as a first attempt, present work focuses on developing a refined fractional Kelvin-Voigt thermoviscoelastic model by incorporating the nonlocal dual-phase-lag (NDPL) heat conduction model and the modified coupled stress theory (MCST). Then, the model is applied to investigating the transient response of a polymer microbeam subjected to a harmonic thermal loading. The governing equations involving the modified parameters are formulated and then solved by Laplace transform method. Some parametric results are demonstrated to display the impacts of the nonlocal thermal parameter, the material length-scale parameter and the fractional-order parameter on the considered physical quantities. The results show that the small-scale effect and the memory-dependent effects strongly depend on the polymer micro-structure characteristics in thermal environment.
WOS研究方向	Engineering ; Mechanics ; Materials Science
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000853619800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159787]
专题	研究生院
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou, Peoples R China 2.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Peng, Wei,Qi, Zezhang,He, Tianhu. Nonlocal dual-phase-lag thermoviscoelastic response of a polymer microbeam incorporating modified couple stress and fractional viscoelastic theories[J]. JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN,2022.
APA	Peng, Wei,Qi, Zezhang,&He, Tianhu.(2022).Nonlocal dual-phase-lag thermoviscoelastic response of a polymer microbeam incorporating modified couple stress and fractional viscoelastic theories.JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN.
MLA	Peng, Wei,et al."Nonlocal dual-phase-lag thermoviscoelastic response of a polymer microbeam incorporating modified couple stress and fractional viscoelastic theories".JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN (2022).