Assessment of structural irregularities in piezoelectric-embedded laminated composites

This study aimed to investigate the behavior of laminated composite plates embedded with piezoelectric material under different loading conditions. The analysis utilized the first order shear deformation theory, which is a commonly used method for analyzing the mechanical behavior of laminated composite plates. The Newton–Raphson residual and iteration method based on Gauss integration point was used to solve the equations of motion. The study considered the impact of various types of mechanical and electrical loading, including in-plane biaxial and uniaxial loading, as well as transverse loading on the piezoelectric plate. The piezoelectric plates were utilized as actuators and sensors with different electrical circuits such as open and closed-loop circuits. The results of this study provided insights into the behavior of these plates under different loading conditions and provided a better understanding of the piezoelectric properties of these materials. Additionally, the study explored the effect of plate aspect ratio, thickness ratio, boundary conditions, ply orientations, nature of loading conditions, and voltage variation on the behavior of these plates. The findings of this study could have important implications for the design and development of more efficient and reliable piezoelectric devices in various engineering applications.