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Edge-cracked bimaterial systems under thermal heating

The problem of thermoelastic edge-cracking in two-layered bimaterial systems subjected to convective heating is considered. The medium is assumed to be insulated on one surface and exposed to sudden convective heating on another surface containing the edge crack. It is known that, when a bimateria...

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Main Authors:	A. Rizk, Abd El-Fattah, Hrairi, Meftah
Format:	Article
Language:	English
Published:	Elsevier 2009
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/6532/1/SAS6553.pdf http://irep.iium.edu.my/6532/ http://www.sciencedirect.com/science/article/pii/S0020768308005064
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spelling	my.iium.irep.65322011-11-24T02:49:59Z http://irep.iium.edu.my/6532/ Edge-cracked bimaterial systems under thermal heating A. Rizk, Abd El-Fattah Hrairi, Meftah TJ Mechanical engineering and machinery The problem of thermoelastic edge-cracking in two-layered bimaterial systems subjected to convective heating is considered. The medium is assumed to be insulated on one surface and exposed to sudden convective heating on another surface containing the edge crack. It is known that, when a bimaterial system’s surface is heated, compressive stresses arise near the heating surface, forcing the crack surfaces together over a certain cusp-shaped contact length. It is also known that, for a cooled bimaterial systems surface, tensile stresses take place close to the cooling surface and tend to open the crack. So, the edge cracked heating surface problem is treated as an embedded crack with a smooth closure condition of the crack surfaces, with the crack contact length being an additional unknown variable. Superposition and uncoupled quasi-static thermoelasticity principles are adopted to formulate the problem. By using a Fourier integral transform technique, the mixed boundary value problem is reduced to a Cauchy type singular integral equation with an unknown function as the derivative of the crack surface displacement. The numerical results of the stress intensity factors for an edge crack and a crack terminating at the interface, are calculated and presented as a function of time, crack length, heat transfer coefficient, and thickness ratio for two different bimaterial systems, namely a stainless steel layer welded on ferritic steel and a ceramic layer coating on ferritic steel. Elsevier 2009 Article REM application/pdf en http://irep.iium.edu.my/6532/1/SAS6553.pdf A. Rizk, Abd El-Fattah and Hrairi, Meftah (2009) Edge-cracked bimaterial systems under thermal heating. International Journal of Solids and Structures, 46 (7-8). pp. 1648-1658. ISSN 0020-7683 http://www.sciencedirect.com/science/article/pii/S0020768308005064 doi:10.1016/j.ijsolstr.2008.12.003
institution	Universiti Islam Antarabangsa Malaysia
building	IIUM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	International Islamic University Malaysia
content_source	IIUM Repository (IREP)
url_provider	http://irep.iium.edu.my/
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery A. Rizk, Abd El-Fattah Hrairi, Meftah Edge-cracked bimaterial systems under thermal heating
description	The problem of thermoelastic edge-cracking in two-layered bimaterial systems subjected to convective heating is considered. The medium is assumed to be insulated on one surface and exposed to sudden convective heating on another surface containing the edge crack. It is known that, when a bimaterial system’s surface is heated, compressive stresses arise near the heating surface, forcing the crack surfaces together over a certain cusp-shaped contact length. It is also known that, for a cooled bimaterial systems surface, tensile stresses take place close to the cooling surface and tend to open the crack. So, the edge cracked heating surface problem is treated as an embedded crack with a smooth closure condition of the crack surfaces, with the crack contact length being an additional unknown variable. Superposition and uncoupled quasi-static thermoelasticity principles are adopted to formulate the problem. By using a Fourier integral transform technique, the mixed boundary value problem is reduced to a Cauchy type singular integral equation with an unknown function as the derivative of the crack surface displacement. The numerical results of the stress intensity factors for an edge crack and a crack terminating at the interface, are calculated and presented as a function of time, crack length, heat transfer coefficient, and thickness ratio for two different bimaterial systems, namely a stainless steel layer welded on ferritic steel and a ceramic layer coating on ferritic steel.
format	Article
author	A. Rizk, Abd El-Fattah Hrairi, Meftah
author_facet	A. Rizk, Abd El-Fattah Hrairi, Meftah
author_sort	A. Rizk, Abd El-Fattah
title	Edge-cracked bimaterial systems under thermal heating
title_short	Edge-cracked bimaterial systems under thermal heating
title_full	Edge-cracked bimaterial systems under thermal heating
title_fullStr	Edge-cracked bimaterial systems under thermal heating
title_full_unstemmed	Edge-cracked bimaterial systems under thermal heating
title_sort	edge-cracked bimaterial systems under thermal heating
publisher	Elsevier
publishDate	2009
url	http://irep.iium.edu.my/6532/1/SAS6553.pdf http://irep.iium.edu.my/6532/ http://www.sciencedirect.com/science/article/pii/S0020768308005064
_version_	1643605753519407104
score	13.211869

Edge-cracked bimaterial systems under thermal heating

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