Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches

Active repairs using piezoelectric actuators can play a significant role in reducing the crack damage propagation in thin plate structures. Mode-I crack opening displacement is the most predominant one in tension, and it is responsible for the failure which in turn affects the load carrying capabili...

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Main Authors:	Abuzaid, Ahmed, Hrairi, Meftah, Shaik Dawood, Mohd. Sultan Ibrahim
Format:	Article
Language:	English English English
Published:	SAGE Journals 2017
Subjects:	TL500 Aeronautics
Online Access:	http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/1/Modeling%20approach%20to%20evaluating.pdf http://irep.iium.edu.my/56113/13/56113_Modeling%20approach_WOS.pdf http://irep.iium.edu.my/56113/14/56113_Modeling%20approach_scopus.pdf.docx

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recordtype	eprints
spelling	iium-561132017-10-17T08:24:48Z http://irep.iium.edu.my/56113/ Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches Abuzaid, Ahmed Hrairi, Meftah Shaik Dawood, Mohd. Sultan Ibrahim TL500 Aeronautics Active repairs using piezoelectric actuators can play a significant role in reducing the crack damage propagation in thin plate structures. Mode-I crack opening displacement is the most predominant one in tension, and it is responsible for the failure which in turn affects the load carrying capability of the cracked structure. In addition, there are limited studies that investigated the effect of the piezoelectric actuator over mode-I active repair. In this study, the mode-I stress intensity factor for a plate with a center crack, and a bonded piezoelectric actuator was modeled using the linear elastic fracture mechanics. For this, an analytical closed-form solution is developed using the virtual crack closure technique taking into account mode-I as the only effective mode, coupling effects of the piezoelectric patch, and the singular stress at the crack tip. In addition, the total stress intensity factor was obtained by the superposition of the stress intensity factor obtained from the stresses produced by the piezoelectric actuators on the crack surfaces as the only external loads on the cracked plate and the stress intensity factor due to the far-field tension load. The proposed analytical model for mode-I stress intensity factor was verified by a finite element–based approach using ANSYS finite element software. The results demonstrated a good agreement between the analytical and finite element models with a relative error of less than 4% in all the cases studied. The results illustrated that the piezoelectric patch is efficient in reducing stress intensity factor when an extension mode of the actuator is applied. However, applying a contraction mode of the piezoelectric actuators produced negative strain which increased the stress intensity factor and thus the severity of the cracked structure and could lead to damage propagation. SAGE Journals 2017-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/56113/1/Modeling%20approach%20to%20evaluating.pdf application/pdf en http://irep.iium.edu.my/56113/13/56113_Modeling%20approach_WOS.pdf application/pdf en http://irep.iium.edu.my/56113/14/56113_Modeling%20approach_scopus.pdf.docx Abuzaid, Ahmed and Hrairi, Meftah and Shaik Dawood, Mohd. Sultan Ibrahim (2017) Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches. Journal of Intelligent Material Systems and Structures, 28 (10). pp. 1334-1345. ISSN 1045-389X E-ISSN 1530-8138 http://journals.sagepub.com/home/jim 10.1177/1045389X16672562
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TL500 Aeronautics
spellingShingle	TL500 Aeronautics Abuzaid, Ahmed Hrairi, Meftah Shaik Dawood, Mohd. Sultan Ibrahim Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
description	Active repairs using piezoelectric actuators can play a significant role in reducing the crack damage propagation in thin plate structures. Mode-I crack opening displacement is the most predominant one in tension, and it is responsible for the failure which in turn affects the load carrying capability of the cracked structure. In addition, there are limited studies that investigated the effect of the piezoelectric actuator over mode-I active repair. In this study, the mode-I stress intensity factor for a plate with a center crack, and a bonded piezoelectric actuator was modeled using the linear elastic fracture mechanics. For this, an analytical closed-form solution is developed using the virtual crack closure technique taking into account mode-I as the only effective mode, coupling effects of the piezoelectric patch, and the singular stress at the crack tip. In addition, the total stress intensity factor was obtained by the superposition of the stress intensity factor obtained from the stresses produced by the piezoelectric actuators on the crack surfaces as the only external loads on the cracked plate and the stress intensity factor due to the far-field tension load. The proposed analytical model for mode-I stress intensity factor was verified by a finite element–based approach using ANSYS finite element software. The results demonstrated a good agreement between the analytical and finite element models with a relative error of less than 4% in all the cases studied. The results illustrated that the piezoelectric patch is efficient in reducing stress intensity factor when an extension mode of the actuator is applied. However, applying a contraction mode of the piezoelectric actuators produced negative strain which increased the stress intensity factor and thus the severity of the cracked structure and could lead to damage propagation.
format	Article
author	Abuzaid, Ahmed Hrairi, Meftah Shaik Dawood, Mohd. Sultan Ibrahim
author_facet	Abuzaid, Ahmed Hrairi, Meftah Shaik Dawood, Mohd. Sultan Ibrahim
author_sort	Abuzaid, Ahmed
title	Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
title_short	Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
title_full	Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
title_fullStr	Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
title_full_unstemmed	Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
title_sort	modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches
publisher	SAGE Journals
publishDate	2017
url	http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/ http://irep.iium.edu.my/56113/1/Modeling%20approach%20to%20evaluating.pdf http://irep.iium.edu.my/56113/13/56113_Modeling%20approach_WOS.pdf http://irep.iium.edu.my/56113/14/56113_Modeling%20approach_scopus.pdf.docx
first_indexed	2023-09-18T21:19:11Z
last_indexed	2023-09-18T21:19:11Z
_version_	1777411766318268416

Modeling approach to evaluating reduction in stress intensity factor in center-cracked plate with piezoelectric actuator patches

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