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首页> 外文期刊>Journal of thermal stresses >THERMOELASTIC ANALYSIS OF THICK-WALLED FINITE-LENGTH CYLINDERS OF FUNCTIONALLY GRADED MATERIALS
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THERMOELASTIC ANALYSIS OF THICK-WALLED FINITE-LENGTH CYLINDERS OF FUNCTIONALLY GRADED MATERIALS

机译：功能梯度材料厚壁有限长圆柱体的热弹性分析

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摘要

A semianalytical thermoelasticity solution for thick-walled finite-length cylinders made of functionally graded (FG) materials is presented. The governing partial differential equations are reduced to ordinary differential equations using Fourier expansion series in the axial coordinate. The radial domain is divided into some virtual subdomains in which the power-law distribution is used for the thermomechanical properties of the constituent components. Imposing the necessary continuity conditions between adjacent subdomains, together with the global boundary conditions, a set of linear algebraic equations are obtained. Solution of the linear algebraic equations yields the thermoelastic responses for each subdomain as exponential functions of the radial coordinate. Some remits for the stress, strain, and displacement components through the thickness and along the length are presented due to uniform internal pressure and thermal loading. Based on the results, the gradation of the constitutive components is a significant parameter in the thermomechanical responses of FG cylinders.
机译：提出了功能梯度材料（FG）制成的厚壁有限长圆柱体的半解析热弹性解。使用轴向坐标上的傅立叶展开级数，控制偏微分方程可简化为常微分方程。径向域被划分为一些虚拟子域，其中幂律分布用于组成组件的热机械特性。通过在相邻子域之间施加必要的连续性条件以及全局边界条件，可以获得一组线性代数方程。线性代数方程的求解产生每个子域的热弹性响应，作为径向坐标的指数函数。由于均匀的内部压力和热负荷，给出了沿厚度和沿长度方向的应力，应变和位移分量的一些缓解。根据结果​​，本构组件的等级是FG钢瓶热机械响应的重要参数。

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