期刊
APPLIED MATHEMATICAL MODELLING
卷 97, 期 -, 页码 754-770出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2021.04.027
关键词
Functionally graded materials; Graphene nanoplatelets; Closed cylindrical shell; Thermo-elastic stresses; Analytical solution
资金
- National Natural Science Foundation of China [11972376]
- Natural Science Foundation of Shandong Province [ZR2020ME092]
- Fundamental Research Funds for the Central Universities of China [20CX02308A]
- Australian Research Council [DP210103656]
This paper investigates the thermo-elastic responses of a functionally graded graphene nanoplatelets reinforced composite closed cylindrical shell under a temperature field for the first time. A comprehensive thermo-elastic model covering various thermal boundary conditions is established. The research findings show that the closed FG-X-GPLRC cylindrical shell with higher GPL concentration has higher thermal conductivity and thus higher thermal stresses.
This paper investigates, for the first time, the thermo-elastic responses of a functionally graded (FG) graphene nanoplatelets (GPLs) reinforced composite (FG-GPLRC) closed cylindrical shell under a temperature field due to steady-state thermal conduction along thickness direction. A comprehensive thermo-elastic model covering various thermal boundary conditions (TBCs) is established. Analytical solutions for both radial stress and hoop stress of the shell are derived based on the plane hypothesis and displacement continuity conditions between the cylindrical shell and hemispherical ends. A parametric study is conducted to investigate the effects of GPL distribution pattern, weight fraction and geometry as well as TBCs on thermal stresses and deformation of the shell. It is found that GPL distributions V and O are preferred patterns for both FG-GPLRC cylindrical shell and hemispherical ends, respectively. The closed FG-X-GPLRC cylindrical shell with higher GPL concentration has higher thermal conductivity consequently higher thermal stresses. The research findings are of practical importance for the applications and design of closed FGGPLRC shells in a variety of engineering sectors. (c) 2021 Elsevier Inc. All rights reserved.
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