Vibration and stability characteristics of FGM beams under thermal-mechanical loads based on a n-th generalized shear beam theory

doi:10.16385/j.cnki.issn.1004-4523.2020.01.007

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	Vibration and stability characteristics of FGM beams under thermal-mechanical loads based on a n-th generalized shear beam theory
	Pu, Yu 1,2; Zhou, Feng-Xi 1
刊名	Zhendong Gongcheng Xuebao/Journal of Vibration Engineering
	2020-02-01
卷号	33 期号:1 页码:64-73
关键词	Convergence of numerical methods Shear deformation Stability Effect of temperature FGM beams Hamilton's principle Length-to-thickness ratio Static and dynamic response Temperature dependent Thermal-mechanical load Vibration behavior
ISSN号	10044523
DOI	10.16385/j.cnki.issn.1004-4523.2020.01.007
英文摘要	The vibration and stability behaviors of FGM beams on an elastic foundation under the coupled action of thermal-mechanical loads are studied. The material properties are assumed to be temperature-dependent and vary according to power-law along the thickness of the beam. Firstly, according to an extension of a n-th order generalized shear beam theory and applying Hamilton's principle, the model of the free vibration and buckling governing equations are obtained as a unity. The static and dynamic responses for FGM beams are obtained by using a MGDQ method. Then, the accuracy of the GBT is tested throughout several numerical examples and herein the satisfactory values to n is proposed. It also refined the beam theories and can be used as a benchmark to verify other various shear deformation beam theories. Finally, the effect of temperature rise, boundary conditions, initial axial mechanical load, material graded index, elastic foundation stiffness, and length-to-thickness ratio on the vibration behaviors and stability of FGM beams are mainly discussed. © 2020, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.
语种	中文
出版者	Nanjing University of Aeronautics an Astronautics
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115361]
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	Pu, Yu,Zhou, Feng-Xi. Vibration and stability characteristics of FGM beams under thermal-mechanical loads based on a n-th generalized shear beam theory[J]. Zhendong Gongcheng Xuebao/Journal of Vibration Engineering,2020,33(1):64-73.
APA	Pu, Yu,&Zhou, Feng-Xi.(2020).Vibration and stability characteristics of FGM beams under thermal-mechanical loads based on a n-th generalized shear beam theory.Zhendong Gongcheng Xuebao/Journal of Vibration Engineering,33(1),64-73.
MLA	Pu, Yu,et al."Vibration and stability characteristics of FGM beams under thermal-mechanical loads based on a n-th generalized shear beam theory".Zhendong Gongcheng Xuebao/Journal of Vibration Engineering 33.1(2020):64-73.