Stress concentration state of piezoelectricity in cylindrical shell based on the non-classical theory

This paper presents the stress concentration at the ends of piezoelectricity cylindrical shell. The shell is subjected to electric potential and mechanical loading applied in the top and bottom surfaces. The mathematical model of electro-elasticity behaviour is based on the non-classical theory and Lagrange's principle. The governing differential equa-tions are reduced to ordinary differential equations by means of trigonometric function expansion for displacement and electric potential. Electromechanical state of the smart cylindrical shell for axisymmetric loads with clamped sup-port is provided. Numerical results are presented showing the effect of boundary layer on local stress concentration at clamped edges. Comparison between the obtained numerical results to classical theory of the Kirchhoff-Love type is accu-rate. © 2021 Society for Structural Integrity and Life (DIVK). All rights reserved.