A theoretical study on asymmetric bending for functionally graded shape memory alloy beam

doi:10.1007/s40430-019-1924-3

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	A theoretical study on asymmetric bending for functionally graded shape memory alloy beam
	Wang, Jichang 1,2; Guo, Xiaoming 1,2; Yang, Jingning 3
刊名	JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
	2019-10
卷号	41 期号:10
关键词	Functionally graded Shape memory alloy Nonlinear Tension-compression asymmetry Thermal and the mechanical loads
ISSN号	1678-5878
DOI	10.1007/s40430-019-1924-3
英文摘要	Bending is an attractive mode of operation and application of functionally graded shape memory alloy (FG-SMA). For decades, numerical methods, such as the finite element method, have been used to model the mechanical behavior of these alloys. In this paper, combining with the critical stress-temperature relationship and stress-strain relationship of shape memory alloy, it researched the mechanical behavior of FG-SMA beam under thermal and mechanical loads with the macroscopic constitutive model. The split-step method was adopted to analyze the process of FG-SMA phase transformation in the loading process. The relationship between stress distribution and three factors that included tension-compression asymmetry coefficient, temperature and power exponent were obtained, and the nonlinear controlling equations of FG-SMA beam were acquired. The influence of tension-compression asymmetry coefficient, temperature and power exponent on deflection, curvature and cross section stress, neutral axis and phase boundary were obtained by solving the equations. It was found that the phase transformation of FG-SMA beam became more and more difficult as the increase in temperature and power exponent. Furthermore, the tension-compression asymmetry coefficient had a great influence on the compression side phase boundary, but it had a little influence on the tension side phase boundary.
资助项目	National Natural Science Foundation of China[51878154] ; National Natural Science Foundation of China[51578142] ; National Natural Science Foundation of China[51478108]
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000487114700002
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31535]
专题	理学院
通讯作者	Guo, Xiaoming
作者单位	1.Southeast Univ, Dept Engn Mech, Nanjing 210096, Jiangsu, Peoples R China 2.Southeast Univ, Jiangsu Key Lab Engn Mech, Nanjing 210096, Jiangsu, Peoples R China 3.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jichang,Guo, Xiaoming,Yang, Jingning. A theoretical study on asymmetric bending for functionally graded shape memory alloy beam[J]. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING,2019,41(10).
APA	Wang, Jichang,Guo, Xiaoming,&Yang, Jingning.(2019).A theoretical study on asymmetric bending for functionally graded shape memory alloy beam.JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING,41(10).
MLA	Wang, Jichang,et al."A theoretical study on asymmetric bending for functionally graded shape memory alloy beam".JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING 41.10(2019).