Elastoplastic thermal buckling of functionally graded material beams | |
Zhang, Jinghua; Chen, Like; Lv, Yali | |
2019-09-15 | |
发表期刊 | COMPOSITE STRUCTURES |
ISSN | 0263-8223 |
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 |
DOI | 10.1016/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 | |
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 |
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). |
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Zhang-2019-Elastopla(1493KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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