Quantitative modeling of dynamic behavior of a piezoelectric wafer actuator bonded to an elastic plate for guided wave propagation

2010 ◽  
Author(s):  
G. L. Huang ◽  
F. Song ◽  
R. Reddy
Keyword(s):  
Wave Propagation ◽  
Dynamic Behavior ◽  
Elastic Plate ◽  
Guided Wave ◽  
Quantitative Modeling ◽  
Guided Wave Propagation ◽  
Piezoelectric Wafer

Guided wave propagation in composite laminates using piezoelectric wafer active sensors

2013 ◽  
Vol 117 (1196) ◽  
pp. 971-995 ◽  
Author(s):  
M. Gresil ◽  
V. Giurgiutiu
Keyword(s):  
Wave Propagation ◽  
Composite Laminates ◽  
Composite Laminate ◽  
Mechanical Impedance ◽  
Guided Wave ◽  
Impedance Method ◽  
Active Sensors ◽  
Piezoelectric Wafer Active Sensors ◽  
Guided Wave Propagation ◽  
Piezoelectric Wafer

AbstractPiezoelectric wafer active sensors (PWAS) are lightweight and inexpensive transducers that enable a large class of structural health monitoring (SHM) applications such as: (a) embedded guided wave ultrasonics, i.e., pitch-catch, pulse-echo, phased arrays; (b) high-frequency modal sensing, i.e., electro-mechanical impedance method; and (c) passive detection. The focus of this paper is on the challenges posed by using PWAS transducers in the composite laminate structures as different from the metallic structures on which this methodology was initially developed. After a brief introduction, the paper reviews the PWAS-based SHM principles. It follows with a discussion of guided wave propagation in composites and PWAS tuning effects. Then, the mechanical effect is discussed on the integration of piezoelectric wafer inside the laminate using a compression after impact. Experiments were performed on a glass fibre laminate, employing PWAS to measure the attenuation coefficient. Finally, the paper presents some experimental and multi-physics finite element method (MP-FEM) results on guided wave propagation in composite laminate specimens.

Manipulation of the guided wave propagation in multilayered phononic plates by introducing interface delaminations

2021 ◽  
pp. 104266
Author(s):  
Yanzheng Wang ◽  
Elias Perras ◽  
Mikhail V. Golub ◽  
Sergey I. Fomenko ◽  
Chuanzeng Zhang ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Guided Wave ◽  
Guided Wave Propagation
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