Free vibration and stability analysis of piezoelectric laminated graphene reinforced functionally graded curved beams considering flexoelectric effect

作者：Nan Zhang, Shijie Zheng · 发表于：Physica Scripta · 年份：2025 · DOI：10.1088/1402-4896/ae24be · 被引用次数：3 · 研究领域：Nonlocal and gradient elasticity in micro/nano structures、Composite Structure Analysis and Optimization、Aeroelasticity and Vibration Control

Abstract In this paper, the free vibration and buckling analysis of functionally graded graphene platelets-reinforced (FG-GPLRCs) composite simply-supported(SS) curved beams sandwiched with piezoelectric layers are investigated. For the first time, this research examines how the piezoelectric and flexoelectric effect affects the performance of FG-GPLRCs composite SS curved beams. The rule of mixture and the Halpin-Tsai micromechanical model are utilized to ascertain the composite layer’s effective material qualities. By using Navier’s method, the governing differential equations are transformed into algebraic equations. Finally, this paper thoroughly examines the effects of various parameters on the stability and free vibration of FG-GPLRCs curved SS beams sandwiched with piezoelectric layers. These parameters include opening angle of the curved beam, GPLs distribution patterns, GPLs weight fractions, piezoelectric and the flexoelectric effect. Simulations demonstrate that the flexoelectricity exhibits a stiffness-hardening mechanism.