The study presents thermo-mechanical analysis of functionally graded (FG) rotating disc whose material properties, namely, Young’s modulus, density and coefficient of thermal expansion in radial direction are tailored from inner to outer radius using power law form. The disc is considered to be under the influence of internal pressure, centrifugal body force and thermal loading of the form linear as well as quadratic. Response of FG disc under linear and quadratic temperature profile subjected to internal pressure as well as centrifugal body force is analysed. An exact solution for stress in radial and tangential directions, under mechanical and thermal loading is presented. Numerical solutions for stresses under internal pressure with uniform thermal loading are obtained using finite element method and its comparison with analytical results is presented graphically. Results for radial displacement, radial stress and tangential stress are depicted graphically and their interpretation has been discussed. KeywordsFunctionally graded rotating disc, Stresses, Young’s modulus, Coefficient of thermal expansion, Internal pressure.

中文翻译：

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线性和二次热负荷下轴对称功能梯度转盘的热力学分析

这项研究提出了功能梯度（FG）转盘的热力学分析，其材料特性（即杨氏模量，密度和径向热膨胀系数）是使用幂律形式从内到外定制的。圆盘被认为受线性和二次形式的内压，离心力和热负荷的影响。分析了FG圆盘在线性和二次温度曲线下的内压以及离心力作用下的响应。提出了在机械和热载荷下径向和切向应力的精确解决方案。利用有限元方法获得了均匀热载荷下内压应力的数值解，并将其与分析结果进行了比较。用图形描述了径向位移，径向应力和切向应力的结果，并讨论了它们的解释。功能梯度转盘应力杨氏模量热膨胀系数内压