A finite element model for the analysis of 3D axisymmetric laminated shells with piezoelectric sensors and actuators

2006 ◽  
Vol 75 (1-4) ◽  
pp. 170-178 ◽  
Author(s):  
Henrique Santos ◽  
Cristóvão M. Mota Soares ◽  
Carlos A. Mota Soares ◽  
J.N. Reddy
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Piezoelectric Sensors ◽  
Sensors And Actuators ◽  
Laminated Shells ◽  
Piezoelectric Sensors And Actuators

Structural Health Monitoring Using Piezoelectric Sensors and Actuators

2016 ◽  
Vol 857 ◽  
pp. 255-260 ◽  
Author(s):  
Ann Maria Thomas ◽  
Koovaparambil Ramunny Pradeep ◽  
Praveen Mathew
Keyword(s):  
Finite Element ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Piezoelectric Sensors ◽  
Strain Response ◽  
Cantilever Plate ◽  
Sensors And Actuators ◽  
Structural Health ◽  
Piezoelectric Sensors And Actuators ◽  
Coupled Field

Structural health monitoring (SHM) is an inevitable component of modern civil and aerospace structures. It essentially detects the damages in the system by evaluating the performance parameters by the integration of sensing and possibly also actuation devices into the structure. In this paper damage detection process in an aluminium cantilever plate using piezoelectric sensors and actuators is simulated. Possible root damage such as transverse crack and longitudinal crack are studied. The results are compared with undamaged case. The plate is actuated using PZT actuators and performance is evaluated using PVDF sensors. Modelling for PZT/PVDF and structural parts are carried out using coupled field finite element PLANE223 ofAnsys(TM) finite element package. Strain response at the root of the cantilever plate is captured as the voltage output of the PVDF sensor. Strain response is directly related to the voltage generated in the PVDF sensor. The percentage variation of the fundamental frequency is found to be less than 3% in the present study and hence it is not taken as an index of damage. The transient voltage response captured with the transient coupled field analysis shows variation up to 24% as a signature between damaged and undamaged systems. Therefore, the present study suggests transient response evaluation using PVDF sensor is a suitable evaluation technique for the cases under consideration.

Finite Element Modelling of Piezoelectric Sensors for Damage Identification in Composite Panels

2008 ◽  
Vol 385-387 ◽  
pp. 885-888
Author(s):  
M.H. Aliabadi ◽  
A. Apicella ◽  
Albert Sanqirgo-Rodriguez
Keyword(s):  
Finite Element ◽  
Health Monitoring ◽  
Finite Element Modelling ◽  
Damage Identification ◽  
Piezoelectric Sensors ◽  
Composite Panels ◽  
The Finite Element Method ◽  
Detection Capability ◽  
Sensors And Actuators ◽  
Piezoelectric Sensors And Actuators

In this paper the application of the finite element method is presented to modeling piezoelectric sensors and actuators for use in structural health monitoring of composite panels. It this demonstrated that FEM can be used to simulate sensorised composite panels and investigate the damage detection capability of sensors.

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