Verification of the thermal buckling load in plates made of functional graded materials

In this study, thermal buckling of thin plate made of Functionally Graded Materials (FGM) with linearly varying thickness is considered. The material properties are also graded in the thickness direction according to a simple power law distribution in which the properties are stated in terms of the...

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Main Authors: Mozafari, Hamid, Ayob, Amran, Alias, Amran
Format: Article
Published: Computer Science Journals 2010
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author Mozafari, Hamid
Ayob, Amran
Alias, Amran
author_facet Mozafari, Hamid
Ayob, Amran
Alias, Amran
author_sort Mozafari, Hamid
collection ePrints
description In this study, thermal buckling of thin plate made of Functionally Graded Materials (FGM) with linearly varying thickness is considered. The material properties are also graded in the thickness direction according to a simple power law distribution in which the properties are stated in terms of the volume fractions of the constituents. All edges of the plate are simply supported. The equilibrium and stability equations of a FGM plate under thermal loads can be derived based on higher order plate theories via variation formulation, and are then used to determine the governing deferential equation of the plate and the pre-buckling forces. The buckling analysis of a FGM plate is conducted by assuming a uniform temperature rise, temperature gradient through the thickness, and linear temperature variation in the thickness. Closed–form solutions are obtained the buckling load defined in a weighted residual approach. In a special case the obtained results are compared with the results of FGM plates with uniform thickness. The influences of the plate thickness variation and the edge ratio on the critical loads are investigated. Different gradient exponent k, different geometries and loading conditions were studied.
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spelling utm.eprints-317572018-09-30T08:15:27Z http://eprints.utm.my/31757/ Verification of the thermal buckling load in plates made of functional graded materials Mozafari, Hamid Ayob, Amran Alias, Amran TJ Mechanical engineering and machinery In this study, thermal buckling of thin plate made of Functionally Graded Materials (FGM) with linearly varying thickness is considered. The material properties are also graded in the thickness direction according to a simple power law distribution in which the properties are stated in terms of the volume fractions of the constituents. All edges of the plate are simply supported. The equilibrium and stability equations of a FGM plate under thermal loads can be derived based on higher order plate theories via variation formulation, and are then used to determine the governing deferential equation of the plate and the pre-buckling forces. The buckling analysis of a FGM plate is conducted by assuming a uniform temperature rise, temperature gradient through the thickness, and linear temperature variation in the thickness. Closed–form solutions are obtained the buckling load defined in a weighted residual approach. In a special case the obtained results are compared with the results of FGM plates with uniform thickness. The influences of the plate thickness variation and the edge ratio on the critical loads are investigated. Different gradient exponent k, different geometries and loading conditions were studied. Computer Science Journals 2010-12 Article PeerReviewed Mozafari, Hamid and Ayob, Amran and Alias, Amran (2010) Verification of the thermal buckling load in plates made of functional graded materials. International Journal of Engineering (IJE), 4 (5). pp. 338-356. ISSN 1985-2312 (Electronic) http://www.cscjournals.org/library/manuscriptinfo.php?mc=IJE-213
spellingShingle TJ Mechanical engineering and machinery
Mozafari, Hamid
Ayob, Amran
Alias, Amran
Verification of the thermal buckling load in plates made of functional graded materials
title Verification of the thermal buckling load in plates made of functional graded materials
title_full Verification of the thermal buckling load in plates made of functional graded materials
title_fullStr Verification of the thermal buckling load in plates made of functional graded materials
title_full_unstemmed Verification of the thermal buckling load in plates made of functional graded materials
title_short Verification of the thermal buckling load in plates made of functional graded materials
title_sort verification of the thermal buckling load in plates made of functional graded materials
topic TJ Mechanical engineering and machinery
work_keys_str_mv AT mozafarihamid verificationofthethermalbucklingloadinplatesmadeoffunctionalgradedmaterials
AT ayobamran verificationofthethermalbucklingloadinplatesmadeoffunctionalgradedmaterials
AT aliasamran verificationofthethermalbucklingloadinplatesmadeoffunctionalgradedmaterials