利用准三维高阶剪切变形理论对具有各种边界条件和温度相关特性的 FG-CNTRC 圆柱壳体进行热弹性分析

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES
Nguyen Duy Phon, Tran Ngoc Doan, Duong Van Quang, Phung Van Minh
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引用次数: 0

摘要

.本研究的重点是对具有各种边界限制的 FG-CNTRC 圆柱壳进行静态分析,包括热机械响应。通过考虑与温度相关的材料特征、准三维高阶剪切变形假设和法向横向应力效应,建立了控制方程。厚度内的温度梯度预计会发生波动,通过使用热传导方程并考虑温度边界限制,可以得出温度梯度的分布模式。奇异三角级数和拉普拉斯变换用于分析解决基本方程。本研究主要考察边界区域的应力水平。研究结果表明,考虑到边界区域应力的突然上升至关重要,尤其是当壳体的相对长度较小时。压力和温度载荷的相互影响也得到了强调。重要的研究结果表明,热负荷可能会增加或减少应力水平,这取决于压力和热负荷效应的方向。对这一问题的研究结果为实际应用中相关结构的计算和设计奠定了基础。此外,这也为即将提出的更复杂的问题奠定了基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermoelastic analysis of FG-CNTRC cylindrical shells with various boundary conditions and temperature-dependent characteristics using quasi-3D higher-order shear deformation theory
. This study focuses on performing static analysis of FG-CNTRC cylinder shells with various boundary restrictions, including thermomechanical responses. The governing equations are developed by taking into account the temperature-dependent material features, the quasi-3D high-order shear deformation hypothesis, and the normal transverse stress effect. The temperature gradient inside the thickness is expected to fluctuate, and the distribution pattern is derived by using the heat transfer equation and considering the temperature boundary limitations. A singular trigonometric series and the Laplace transform are used in an analytics solution to address basic equations. This study primarily examines the stress levels at the border region. The findings indicate that it is crucial to take into account the abrupt rise in stress at the boundary area, particularly when the shell’s relative length is small. The reciprocal impact of pressure and temperature load is also emphasized. Significant findings indicate that thermal load may either augment or diminish stress levels, contingent upon the orientation of the pressure and thermal load effect. The results of the study of this issue serve as the foundation for the calculation and design of relevant structures in practical applications. Furthermore, this serves as a foundation for the creation of more intricate issues in the forthcoming.
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来源期刊
Journal of Thermoplastic Composite Materials
Journal of Thermoplastic Composite Materials 工程技术-材料科学:复合
CiteScore
8.00
自引率
18.20%
发文量
104
审稿时长
5.9 months
期刊介绍: The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).
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