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Elastoplastic thermal buckling of functionally graded material beams
Zhang, Jinghua; Chen, Like; Lv, Yali
2019-09-15
发表期刊COMPOSITE STRUCTURES
ISSN0263-8223
卷号224
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.
关键词Functionally graded materials Elastoplastic Thermal buckling Symplectic method
DOI10.1016/j.compstruct.2019.111014
收录类别SCI ; SCIE
语种英语
资助项目National Natural Science Foundation of China[11662008][11862012]
WOS研究方向Mechanics ; Materials Science
WOS类目Mechanics ; Materials Science, Composites
WOS记录号WOS:000473321600030
出版者ELSEVIER SCI LTD
EI入藏号20192206993149
EI主题词Functionally graded materials
EI分类号408.2 Structural Members and Shapes - 921 Mathematics
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/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
第一作者单位理学院
通讯作者单位理学院
第一作者的第一单位理学院
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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).
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