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Fracture toughness of materials subjected to a temperature gradient

A fracture criterion for crack initiation for nan-homogeneous materials based on mechanical properties is investigated in this paper. In this work polymethylmethacrylate (PMMA) is chosen as the test material, since it is so brittle that linear fracture mechanics (LEFM) can be applied to its fracture...

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Main Authors: Shah, Qasim Hussain, Homma, H.
格式: Article
语言:English
出版: Elsevier BV 1994
主题:
TK1001 Production of electric energy. Powerplants
在线阅读:http://irep.iium.edu.my/5657/1/Qasim51.pdf
http://irep.iium.edu.my/5657/
http://www.sciencedirect.com/science/article/pii/0308016194900566
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spelling my.iium.irep.56572013-07-17T07:12:41Z http://irep.iium.edu.my/5657/ Fracture toughness of materials subjected to a temperature gradient Shah, Qasim Hussain Homma, H. TK1001 Production of electric energy. Powerplants A fracture criterion for crack initiation for nan-homogeneous materials based on mechanical properties is investigated in this paper. In this work polymethylmethacrylate (PMMA) is chosen as the test material, since it is so brittle that linear fracture mechanics (LEFM) can be applied to its fracture behavior and its material properties are susceptible to temperature. Three-point bend tests were carried out to establish the temperature dependence of fracture toughness for this material, by maintaining a uniform temperature in the specimens during the test. Further tests were made by keeping the edges of the specimen at different temperatures by subjecting the specimens to specified temperature gradients. These temperature gradients create non-homogeneous mechanical properties in PMMA specimens. Fracture toughness values obtained by temperature gradient tests remarkably increase or decrease depending upon the heating or cooling configurations of the specimens as well as on the size of the temperature gradient, in comparison with those of uniform temperature tests. Elsevier BV 1994 Article REM application/pdf en http://irep.iium.edu.my/5657/1/Qasim51.pdf Shah, Qasim Hussain and Homma, H. (1994) Fracture toughness of materials subjected to a temperature gradient. International Journal of Pressure Vessels and Piping, 57 (2). pp. 223-230. ISSN 0308-0161 http://www.sciencedirect.com/science/article/pii/0308016194900566
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 TK1001 Production of electric energy. Powerplants
spellingShingle TK1001 Production of electric energy. Powerplants
Shah, Qasim Hussain
Homma, H.
Fracture toughness of materials subjected to a temperature gradient
description A fracture criterion for crack initiation for nan-homogeneous materials based on mechanical properties is investigated in this paper. In this work polymethylmethacrylate (PMMA) is chosen as the test material, since it is so brittle that linear fracture mechanics (LEFM) can be applied to its fracture behavior and its material properties are susceptible to temperature. Three-point bend tests were carried out to establish the temperature dependence of fracture toughness for this material, by maintaining a uniform temperature in the specimens during the test. Further tests were made by keeping the edges of the specimen at different temperatures by subjecting the specimens to specified temperature gradients. These temperature gradients create non-homogeneous mechanical properties in PMMA specimens. Fracture toughness values obtained by temperature gradient tests remarkably increase or decrease depending upon the heating or cooling configurations of the specimens as well as on the size of the temperature gradient, in comparison with those of uniform temperature tests.
format Article
author Shah, Qasim Hussain
Homma, H.
author_facet Shah, Qasim Hussain
Homma, H.
author_sort Shah, Qasim Hussain
title Fracture toughness of materials subjected to a temperature gradient
title_short Fracture toughness of materials subjected to a temperature gradient
title_full Fracture toughness of materials subjected to a temperature gradient
title_fullStr Fracture toughness of materials subjected to a temperature gradient
title_full_unstemmed Fracture toughness of materials subjected to a temperature gradient
title_sort fracture toughness of materials subjected to a temperature gradient
publisher Elsevier BV
publishDate 1994
url http://irep.iium.edu.my/5657/1/Qasim51.pdf
http://irep.iium.edu.my/5657/
http://www.sciencedirect.com/science/article/pii/0308016194900566
_version_ 1643605589289336832
score 13.251813

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