Elastoplastic thermal buckling of functionally graded material beams

doi:10.1016/j.compstruct.2019.111014

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Elastoplastic thermal buckling of functionally graded material beams
	Zhang, Jinghua; Chen, Like; Lv, Yali
刊名	COMPOSITE STRUCTURES
	2019-09-15
卷号	224
关键词	Functionally graded materials Elastoplastic Thermal buckling Symplectic method
ISSN号	0263-8223
DOI	10.1016/j.compstruct.2019.111014
英文摘要	Elastoplastic thermal buckling characteristics of ceramic-metal functionally graded material (FGM) beams subjected to transversely non-uniform temperature rise are investigated by symplectic method in Hamiltonian system. Based on TTO model, the linear hybrid hardening elastoplastic model is used to simulate the elastoplastic material properties and establish thermal elastoplastic constitutive equations of FGM beams. Then, the canonical equations are established to transform critical loads and buckling modes into symplectic eigenvalues and eigensolutions in symplectic space. The main contributions of this study are that complete buckling mode space and critical thermal axial forces for elastoplastic thermal buckling of the FGM beams are obtained by analytical solutions; meanwhile, buckling temperatures and elastoplastic interfaces of the bucked FGM beams are obtained by inverse solutions. Numerical examples of buckling behaviors varying with thermal load, slenderness ratio and power law index are presented. The effects of elastoplastic material properties on critical temperatures and plastic zone are analyzed and discussed.
资助项目	National Natural Science Foundation of China[11662008][11862012]
WOS研究方向	Mechanics ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000473321600030
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31567]
专题	理学院
通讯作者	Zhang, Jinghua
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jinghua,Chen, Like,Lv, Yali. Elastoplastic thermal buckling of functionally graded material beams[J]. COMPOSITE STRUCTURES,2019,224.
APA	Zhang, Jinghua,Chen, Like,&Lv, Yali.(2019).Elastoplastic thermal buckling of functionally graded material beams.COMPOSITE STRUCTURES,224.
MLA	Zhang, Jinghua,et al."Elastoplastic thermal buckling of functionally graded material beams".COMPOSITE STRUCTURES 224(2019).