Influence of porosity on the hygro-thermo-mechanical bending response of an AFG ceramic-metal plates using an integral plate model

IF 2.1 3区工程技术 Q2 ENGINEERING, CIVIL

Smart Structures and Systems Pub Date : 2021-10-01 DOI:10.12989/SSS.2021.28.4.499

M. Al-Osta, H. Saidi, A. Tounsi, S. Al-Dulaijan, M. Al-Zahrani, A. Sharif, A. Tounsi

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引用次数: 38

Abstract

In this project, the hygro-thermo-mechanical bending behavior of perfect and imperfect advanced functionally graded (AFG) ceramic-metal plates is analytically investigated using an integral plate model for the first time. The plate is assumed to be supported by a two-parameter elastic foundation. Because of the technical problems encountered in the manufacture of AFG, porosities and micro-voids can occur in AFG specimens, which can result in reduced density and strength of materials. Thus, due to the presence of porosity, a modified rule of mixture is adopted to predict the material properties of the AFG plates. The governing equations are deduced by adopting the "principle of virtual work" and an integral plate model. The analytical Navier's method is considered to solve the obtained differential equations for simply supported AFG porous plate. The results obtained are checked by comparing them for non-porous and porous AFG plates with those available in the open literature. Finally, this work will help us to design advanced functionally graded materials to ensure better durability and efficiency for hygro-thermal environments.

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利用积分板模型研究孔隙率对AFG陶瓷-金属板湿-热-机械弯曲响应的影响

在本项目中，首次使用积分板模型对完美和不完美高级功能梯度（AFG）陶瓷金属板的湿热力学弯曲行为进行了分析研究。假定板由双参数弹性地基支撑。由于AFG制造过程中遇到的技术问题，AFG试样中可能会出现孔隙率和微孔，这可能导致材料的密度和强度降低。因此，由于孔隙率的存在，采用改进的混合物规则来预测AFG板的材料性能。采用“虚功原理”和积分板模型推导了控制方程。将解析Navier方法用于求解所得到的简支AFG多孔板的微分方程。通过将无孔和多孔AFG板的结果与公开文献中的结果进行比较来检查所获得的结果。最后，这项工作将帮助我们设计先进的功能梯度材料，以确保在湿热环境中具有更好的耐用性和效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Smart Structures and Systems 工程技术-工程：机械

CiteScore

6.50

自引率

8.60%

发文量

审稿时长

9 months

期刊介绍： An International Journal of Mechatronics, Sensors, Monitoring, Control, Diagnosis, and Management airns at providing a major publication channel for researchers in the general area of smart structures and systems. Typical subjects considered by the journal include: Sensors/Actuators(Materials/devices/ informatics/networking) Structural Health Monitoring and Control Diagnosis/Prognosis Life Cycle Engineering(planning/design/ maintenance/renewal) and related areas.