Damage detection in structures using electromechanical impedance and finite element analysis

Djemana, Mohamed and Hrairi, Meftah (2015) Damage detection in structures using electromechanical impedance and finite element analysis. Applied Mechanics and Materials, 799-80. pp. 971-975. ISSN 1660-9336

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Abstract

Impedance-based structural health monitoring (SHM) techniques have been developed as a promising tool for real-time structural damage assessment, and are considered as a new nondestructive evaluation method. It is gaining popularity due to its potential of reducing maintenance costs while increasing safety and reliability. This article present the results of Finite Element analysis performed for aluminum beam with bonded piezoelectric transducer (PZT). Modeled structure was excited to vibrate at high frequency range and electromechanical impedance (EMI) plots were obtained from the harmonic analysis. Notches were introduced in the beam and the damage metrics were used to assess qualitative changes in structural properties of the system. Furthermore, a parametric study of the effects of different variables was carried out. The numerical results show a good agreement was observed.

Item Type:	Article (Journal)
Additional Information:	4980/46866
Uncontrolled Keywords:	Structural health monitoring (SHM); electro mechanical impedance (EMI), Piezoelectric (PZT) transducer
Subjects:	T Technology > TJ Mechanical engineering and machinery
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:	02 Jan 2016 11:50
Last Modified:	15 Jul 2016 15:22
URI:	http://irep.iium.edu.my/id/eprint/46866

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