Evaluating the reduction of stress intensity factor in center-cracked plates using piezoelectric actuators

Abuzaid, Ahmed and Hrairi, Meftah and Shaik Dawood, Mohd. Sultan Ibrahim (2018) Evaluating the reduction of stress intensity factor in center-cracked plates using piezoelectric actuators. Actuators, 7 (2). pp. 1-13. ISSN 2076-0825

	PDF - Published Version Restricted to Registered users only Download (5MB) | Request a copy
Preview	PDF (SCOPUS) - Supplemental Material Download (61kB) | Preview
Preview	PDF (WOS) - Supplemental Material Download (180kB) | Preview

Abstract

Active repairs using smart materials such as piezoelectric actuators can play a significant role in reducing the crack damage propagation in engineering structures. This study analytically and numerically investigated the active repair of center-cracked plates using piezoelectric actuators. First, the stress intensity factor (SIF) for a center-cracked plate due to stress produced by a piezoelectric actuator is analytically modeled. This analytical model is obtained by applying the method of weight functions. In the second step, the solution is found for the center-cracked plate due to external loading from known linear elastic fracture mechanics. These solutions are then superimposed, taking into account the superposition principle to yield the total stress intensity factor for the integrated piezoelectric actuator to the center-cracked plate. Finally, the proposed theoretical model is verified by finite element simulation. The results indicated that the relative errors of the analytical model and the FEA results are less than 5% in all the cases studied in this paper.

Item Type:	Article (Journal)
Additional Information:	4980/66597
Uncontrolled Keywords:	piezoelectric actuator; fracture mechanics; active repair; stress intensity factor
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
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:	Prof. Dr. Meftah Hrairi
Date Deposited:	17 Oct 2018 10:38
Last Modified:	17 Oct 2018 10:40
URI:	http://irep.iium.edu.my/id/eprint/66597

Actions (login required)

View Item