$Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials$

Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials

In this study, the active repair and control of a Mode-I opening displacement for centre/edge cracked structures is conducted. The repair and control technique is performed utilizing the piezoelectric electromechanical behaviour. The study is divided into two major parts whereas accurate mathematica...

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Main Author:	Hrairi, Meftah
Format:	Monograph
Language:	English
Published:	2019
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/71426/ http://irep.iium.edu.my/71426/7/END%20OF%20PROJECT%20REPORT%20RIGS%2015-061-0061.pdf

id	iium-71426
recordtype	eprints
spelling	iium-714262019-12-01T00:24:28Z http://irep.iium.edu.my/71426/ Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials Hrairi, Meftah T Technology (General) TJ Mechanical engineering and machinery In this study, the active repair and control of a Mode-I opening displacement for centre/edge cracked structures is conducted. The repair and control technique is performed utilizing the piezoelectric electromechanical behaviour. The study is divided into two major parts whereas accurate mathematical models are proposed. The models relate the Mode-I stress intensity factor and piezoelectric actuator parameters for centre and edge cracked isotropic plates respectively. The electromechanical models are based on Linear Elastic Fracture Mechanics (LEFM), the virtual crack closure method, the singular stress at the crack tip, and the coupling effects of the piezoelectric actuator. In addition, the superposition method is applied for the stress intensity factor produced by the piezoelectric actuator as the only external load on the cracked plate and the stress intensity factor due to the far field tension load. The proposed analytical models are then verified by finite element analysis (FEA). The results demonstrate a good agreement between the analytical and finite element models. The work then proceeds by conducting experimental investigations in order to validate the proposed analytical model and the finite element analysis. The experimental results show that the proposed analytical solution is applicable with reasonable accuracy. Moreover, a parametric study is conducted to understand the influence and study the efficiency of the piezoelectric actuator on mitigation of the Mode-I SIF. The parametric results indicate that the applied voltage, actuator shape, and thickness have significant influence on the active repair performance. In summary, this project has demonstrated the feasibility and practicality of the active repair of the edge/centre cracked isotropic plate under Mode-I loading using analytical, numerical simulations, and experimental studies. 2019-03-29 Monograph NonPeerReviewed application/pdf en http://irep.iium.edu.my/71426/7/END%20OF%20PROJECT%20REPORT%20RIGS%2015-061-0061.pdf Hrairi, Meftah (2019) Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials. Research Report. UNSPECIFIED. (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Hrairi, Meftah Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
description	In this study, the active repair and control of a Mode-I opening displacement for centre/edge cracked structures is conducted. The repair and control technique is performed utilizing the piezoelectric electromechanical behaviour. The study is divided into two major parts whereas accurate mathematical models are proposed. The models relate the Mode-I stress intensity factor and piezoelectric actuator parameters for centre and edge cracked isotropic plates respectively. The electromechanical models are based on Linear Elastic Fracture Mechanics (LEFM), the virtual crack closure method, the singular stress at the crack tip, and the coupling effects of the piezoelectric actuator. In addition, the superposition method is applied for the stress intensity factor produced by the piezoelectric actuator as the only external load on the cracked plate and the stress intensity factor due to the far field tension load. The proposed analytical models are then verified by finite element analysis (FEA). The results demonstrate a good agreement between the analytical and finite element models. The work then proceeds by conducting experimental investigations in order to validate the proposed analytical model and the finite element analysis. The experimental results show that the proposed analytical solution is applicable with reasonable accuracy. Moreover, a parametric study is conducted to understand the influence and study the efficiency of the piezoelectric actuator on mitigation of the Mode-I SIF. The parametric results indicate that the applied voltage, actuator shape, and thickness have significant influence on the active repair performance. In summary, this project has demonstrated the feasibility and practicality of the active repair of the edge/centre cracked isotropic plate under Mode-I loading using analytical, numerical simulations, and experimental studies.
format	Monograph
author	Hrairi, Meftah
author_facet	Hrairi, Meftah
author_sort	Hrairi, Meftah
title	Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
title_short	Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
title_full	Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
title_fullStr	Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
title_full_unstemmed	Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
title_sort	investigation of piezoelectric actuation effect on fracture toughness of isotropic materials
publishDate	2019
url	http://irep.iium.edu.my/71426/ http://irep.iium.edu.my/71426/7/END%20OF%20PROJECT%20REPORT%20RIGS%2015-061-0061.pdf
first_indexed	2023-09-18T21:41:17Z
last_indexed	2023-09-18T21:41:17Z
_version_	1777413156912496640

Investigation of piezoelectric actuation effect on fracture toughness of isotropic materials

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