Estimation of stress intensity factor reduction for a center-cracked plate integrated with piezoelectric actuator and composite patch

Abdul, Abid and Hrairi, Meftah and Abuzaid, Ahmed and Mohamed Ali, Jaffar Syed (2021) Estimation of stress intensity factor reduction for a center-cracked plate integrated with piezoelectric actuator and composite patch. Thin Walled Structures, 158. pp. 1-15. ISSN 0263-8231

	PDF (SCOPUS) - Published Version Restricted to Registered users only Download (436kB) | Request a copy
	PDF (full text) - Published Version Restricted to Registered users only Download (10MB) | Request a copy

Abstract

Active repair of a damaged structure using piezoelectric (PZT) actuators has played a significant role during the last two decades in reducing crack damage propagation in structures due to its electro-mechanical effect. Similarly, passive repair of damaged structures using composite materials has been widely used in recent years, and it has been divided into many types. In this paper, the hybrid repair of center-cracked plate using PZT actuators at the front of a plate and a composite patch at the back of the plate is analytically and numerically investigated. First, the solution is obtained from Rose’s equations for the center-cracked plate integrated with a composite patch and a passive PZT actuator under uniform uniaxial load. Second, the stress intensity factor (SIF) for a center-cracked plate due to stress produced by a PZT actuator is analytically modeled using the weight functions method. The superposition principle is then used to superimpose the aforementioned solutions in order to yield the PZT actuator and composite patch’s hybrid stress intensity factor for the center-cracked plate. Finally, the proposed analytical method was verified using the finite element method. The results demonstrate low relative errors between the analytical and the FE of below 5% in all the cases studied in this paper.

Item Type:	Article (Journal)
Additional Information:	4980/85891
Uncontrolled Keywords:	Piezoelectric actuator, Composite patch Stress intensity factor Finite element method Analytical model
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1 Motor vehicles
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr Mohamed Ali Jaffar Syed
Date Deposited:	10 Dec 2020 16:43
Last Modified:	10 Dec 2020 16:43
URI:	http://irep.iium.edu.my/id/eprint/85891

Actions (login required)

View Item