Finite element simulation of electro-mechanical impedance technique

Tahmasebpour, Kamyar and Hrairi, Meftah and Shaik Dawood, Mohd. Sultan Ibrahim (2015) Finite element simulation of electro-mechanical impedance technique. Advanced Materials Research, 1115. pp. 539-542. ISSN 1022-6680

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Abstract

Electro-mechanical impedance method is emerging as an important and powerful technique for structural health monitoring (SHM). Active elements of the technique are Piezoelectric Wafer Active Sensor (PWAS) bonded on the structure. Modeling and simulation of PWAS and host structure play an important role in the SHM applications with PWAS. For decades, finite element method has been extensively applied in the analysis of piezoelectric materials and structures. In this paper, piezoelectric element and a host metallic structure were modeled using Ansys finite element software to find the Electromechanical Impedance (EMI) according to the signal frequency. After that, the EMI signature of the beam was found for different positions of the PWAS patch. The study shows that sensor position may directly control the EMI signature.

Item Type:	Article (Journal)
Additional Information:	4980/44041
Uncontrolled Keywords:	Finite Element Method, Electro-Mechanical Impedance, Piezoelectric Wafer Active Sensor, ANSYS
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA165 Engineering instruments, meters, etc. Industrial instrumentation T Technology > TA Engineering (General). Civil engineering (General) > TA630 Structural engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Meftah Hrairi
Date Deposited:	03 Aug 2015 09:14
Last Modified:	12 Aug 2015 10:47
URI:	http://irep.iium.edu.my/id/eprint/44041

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