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首页> 外文期刊>Applied Mathematical Modelling >Thermo-elastic analysis of functionally graded graphene nanoplatelets (GPLs) reinforced closed cylindrical shells
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Thermo-elastic analysis of functionally graded graphene nanoplatelets (GPLs) reinforced closed cylindrical shells

机译：功能梯度石墨烯纳米片（GPLS）的热弹性分析增强闭圆柱壳

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摘要

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 FG-GPLRC shells in a variety of engineering sectors.
机译：本文首次研究了由于沿厚度方向的稳态热导通而在温度场下的功能梯度（FG）石墨烯纳米片（GPLS）增强复合物（FG-GPLRC）闭合圆柱壳的热弹性响应。建立了覆盖各种热边界条件（TBC）的综合热弹性模型。基于圆柱形壳和半球端之间的平面假设和位移连续性条件来导出壳体径向应力和箍应力的分析解。进行参数研究以研究GPL分布图案，重量分数和几何形状的影响以及TBC对壳体的热应力和变形。发现GPL分布V和O分别是FG-GPLRC圆柱形壳和半球形端部的优选图案。因此，具有较高GPL浓度的闭合FG-X-GPLRC圆柱壳具有较高的导热性，因此热应力较高。研究结果对各种工程领域的封闭式FG-GPLRC壳的应用和设计具有实际重要性。

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