Numerical and Experimental Analysis of the Dynamic Behavior of Piezoelectric Stiffened Composite Plates Subjected to Airflow

Abstract

In this paper, the authors present results on dynamic behavior analysis of the stiffened composite plate with piezoelectric patches under airflow by finite element method and experimental study. The first-order shear deformation plate theory and nine-noded isoparametric piezoelectric laminated plate finite element with five elastic degrees of freedom at each node and one electric degree of freedom per element per piezoelectric layer were used in the dynamic analysis of plates by finite element method. The modern equipment was used in the dynamic behaviors analysis of plates subjected to airflow load by experimental method. In this study, the results of the theoretical method have been compared with experimental studies.

Static and Dynamic Analysis of Piezoelectric Laminated Composite Beams and Plates

“…Using Eqs. (15), and (20), the linear piezoelectric constitutive equations coupling the elastic and electric fields will be completely determined by Eqs. (2) and (3).…”

“…Based on the first order theory, the aerodynamic pressure l h and moment m θ , can be described as [15][16][17]:…”

“…where t p is the plate thickness and t xs is the x-stiffener depth. The element stiffness and mass matrices are defined as follows [2,15]:…”

Active Vibration Suppression of Stiffened Composite Panels with Piezoelectric Materials under Blast Loads

“…First of all, the k th layer's piezoelectric coupling relations between the elastic and the electrical fields could be presented, and the equations can be written as follows [15]:…”

“…Also, Liu et al [14] presented the dynamic analytical solution of piezoelectric stack using piezo-elasticity theory. In addition, Chung et al [15] studied the dynamic behaviors of stiffened composite model with piezoelectric patches under airflow. The blast loads applied a sharp pressure to the composite structure in a moment.…”