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.
Format:	Article
Language:	English
Published:	Elsevier BV 1994
Subjects:	TK1001 Production of electric energy. Powerplants
Online Access:	http://irep.iium.edu.my/5657/ http://irep.iium.edu.my/5657/ http://irep.iium.edu.my/5657/1/Qasim51.pdf

id	iium-5657
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/5657/ http://irep.iium.edu.my/5657/1/Qasim51.pdf
first_indexed	2023-09-18T20:14:22Z
last_indexed	2023-09-18T20:14:22Z
_version_	1777407688672542720

Fracture toughness of materials subjected to a temperature gradient

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