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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2009
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iium-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 PeerReviewed 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 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| 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/ http://irep.iium.edu.my/6532/ http://irep.iium.edu.my/6532/ http://irep.iium.edu.my/6532/1/SAS6553.pdf |
| first_indexed |
2023-09-18T20:15:31Z |
| last_indexed |
2023-09-18T20:15:31Z |
| _version_ |
1777407761240293376 |