Dynamic behaviors of porous FGVM beams subjected to thermal mechanical viscoelastic effects

doi:10.6052/j.issn.1000-4750.2020.04.0235

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	Dynamic behaviors of porous FGVM beams subjected to thermal mechanical viscoelastic effects
	Zhou, Feng-Xi 1; Pu, Yu 1,2
刊名	Gongcheng Lixue/Engineering Mechanics
	2021-02-01
卷号	38 期号:2 页码:16-26
关键词	Equations of state Hamiltonians Heat conduction Porosity Viscoelasticity Free vibration behavior Generalized beam theories Length-to-thickness ratio One dimensional steady state Power law distribution Thermal-mechanical load Visco-elastic material Viscoelastic foundation
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2020.04.0235
英文摘要	Based on a three-parameter Winkler-Pasternak viscoelastic foundation model, the free vibration behavior of porous functionally graded viscoelastic material (FGVM) beams in thermal environment subjected to initial axial mechanical force is investigated. Temperature distribution is determined by a one-dimensional steady-state heat conduction equation. The material properties are temperature-dependent and described by using Kelvin-Voigt model according to the modified mixture power-law distribution form with even porosity for FGVM beams. Based on n-th order generalized beam theory, the dynamic governing equations for this system are derived by using Hamiltonian principle. An generalized form for Navier method can be utilized to obtain the exact coupling vibration responses of the FGVM beams with both clamped ends, clamped at one end and hinged at the other end, and hinged at both ends. The effects of different beam theories, boundary conditions, thermal-mechanical loads, viscoelastic foundation parameters, structural damping coefficient, porosity, material graded index, length-to-thickness ratio and mode number on the dynamic behavior of FGVM beams are discussed by several numerical examples. Copyright ©2021 Engineering Mechanics. All rights reserved.
语种	中文
出版者	Tsinghua University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147235]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Civil Engineering, Lanzhou Institute of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhou, Feng-Xi,Pu, Yu. Dynamic behaviors of porous FGVM beams subjected to thermal mechanical viscoelastic effects[J]. Gongcheng Lixue/Engineering Mechanics,2021,38(2):16-26.
APA	Zhou, Feng-Xi,&Pu, Yu.(2021).Dynamic behaviors of porous FGVM beams subjected to thermal mechanical viscoelastic effects.Gongcheng Lixue/Engineering Mechanics,38(2),16-26.
MLA	Zhou, Feng-Xi,et al."Dynamic behaviors of porous FGVM beams subjected to thermal mechanical viscoelastic effects".Gongcheng Lixue/Engineering Mechanics 38.2(2021):16-26.