Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load

In this paper, the fracture problem of a functionally graded piezoelectric material strip (FGPM strip) containing a crack perpendicular to the interface between the FGPM strip and a homogeneous layer under an electric load is considered. Material properties are assumed to be exponentially dependent...

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Autores principales:	Sei UEDA, Yuuta YAMABATA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	functionally graded piezoelectric material fracture mechanics elasticity normal crack stress intensity factor integral transform electric load Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/82025beac08b492d91af63f4f780971d
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id	oai:doaj.org-article:82025beac08b492d91af63f4f780971d
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spelling	oai:doaj.org-article:82025beac08b492d91af63f4f780971d2021-11-29T06:01:25ZStress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load2187-974510.1299/mej.20-00325https://doaj.org/article/82025beac08b492d91af63f4f780971d2020-09-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/5/7_20-00325/_pdf/-char/enhttps://doaj.org/toc/2187-9745In this paper, the fracture problem of a functionally graded piezoelectric material strip (FGPM strip) containing a crack perpendicular to the interface between the FGPM strip and a homogeneous layer under an electric load is considered. Material properties are assumed to be exponentially dependent on the distance from the interface. The superposition technique is used to solve the governing equations. The stresses induced by the electric load in the un-cracked laminate are calculated, and the obtained normal stress is used as the crack surface tractions with opposite sign to formulate the mixed boundary value problem. By using the Fourier transforms, the electro-mechanical fracture problem is reduced to a singular integral equation, which is solved numerically. The stress intensity factors of the internal crack and the edge crack are computed and presented for the various values of the nonhomogeneous and geometric parameters.Sei UEDAYuuta YAMABATAThe Japan Society of Mechanical Engineersarticlefunctionally graded piezoelectric materialfracture mechanicselasticitynormal crackstress intensity factorintegral transformelectric loadMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 5, Pp 20-00325-20-00325 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	functionally graded piezoelectric material fracture mechanics elasticity normal crack stress intensity factor integral transform electric load Mechanical engineering and machinery TJ1-1570
spellingShingle	functionally graded piezoelectric material fracture mechanics elasticity normal crack stress intensity factor integral transform electric load Mechanical engineering and machinery TJ1-1570 Sei UEDA Yuuta YAMABATA Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
description	In this paper, the fracture problem of a functionally graded piezoelectric material strip (FGPM strip) containing a crack perpendicular to the interface between the FGPM strip and a homogeneous layer under an electric load is considered. Material properties are assumed to be exponentially dependent on the distance from the interface. The superposition technique is used to solve the governing equations. The stresses induced by the electric load in the un-cracked laminate are calculated, and the obtained normal stress is used as the crack surface tractions with opposite sign to formulate the mixed boundary value problem. By using the Fourier transforms, the electro-mechanical fracture problem is reduced to a singular integral equation, which is solved numerically. The stress intensity factors of the internal crack and the edge crack are computed and presented for the various values of the nonhomogeneous and geometric parameters.
format	article
author	Sei UEDA Yuuta YAMABATA
author_facet	Sei UEDA Yuuta YAMABATA
author_sort	Sei UEDA
title	Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
title_short	Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
title_full	Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
title_fullStr	Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
title_full_unstemmed	Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
title_sort	stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/82025beac08b492d91af63f4f780971d
work_keys_str_mv	AT seiueda stressintensityfactorofacracknormaltotheinterfacebetweenahomogeneousandafunctionallygradedpiezoelectriclayersunderanelectricload AT yuutayamabata stressintensityfactorofacracknormaltotheinterfacebetweenahomogeneousandafunctionallygradedpiezoelectriclayersunderanelectricload
_version_	1718407596562448384

Stress intensity factor of a crack normal to the interface between a homogeneous and a functionally graded piezoelectric layers under an electric load

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