The present paper investigates size-dependent buckling analysis of a functionally graded cylindrical micro/nano shell integrated with a regular pattern of piezoelectric segments based on first-order shear deformation theory and virtual work principle. The piezoelectric segments are actuated with external voltage. The nonlocal electro-elastic relations are developed in cylindrical coordinate system for both functionally graded layer and piezoelectric segments. An analytical solution is developed based on Navier’s technique for simply supported boundary conditions. A verification of results is performed using comparison with available results of literature. A full numerical analysis is given to investigate effect of various important parameters such as length to radius ratio, segment angles, radius to core-thickness ratio, segment-thickness ratio, number of segments, nonlocal coefficient to core-thickness ratio and external voltage on the buckling loads.

本文基于一阶剪切变形理论和虚拟工作原理，研究了功能梯度圆柱形微/纳米壳与规则的压电段集成在一起的尺寸依赖性屈曲分析。压电段由外部电压驱动。在功能梯度层和压电节段的圆柱坐标系中开发了非局部电弹性关系。基于Navier技术为简单支持的边界条件开发了一种解析解决方案。通过与现有文献结果进行比较来对结果进行验证。进行了完整的数值分析，以研究各种重要参数的影响，例如长度与半径之比，段角，半径与芯厚比，段厚比，