Stability of crack propagation during bending tests on brittle materials

Detalhes bibliográficos
Autor(a) principal: Peret,C. M.
Data de Publicação: 2008
Outros Autores: Rodrigues,J. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132008000300018
Resumo: Applications of ceramic materials usually involve thermal stresses that can reduce their lifetime considerably. One of the most relevant mechanical properties for evaluating thermal shock damage resistance is the energy of fracture. In order to obtain this property, a stable crack growth regimen must be achieved throughout the test. In this paper, three-point bending tests are analyzed to determine how machine stiffness influences load point displacement rates. Understanding the differences between recorded and adjusted displacement rates is important in determining the stability of crack growth. This statement is corroborated by experimental data on sintered high-alumina, low-cement refractory castables.
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spelling Stability of crack propagation during bending tests on brittle materialsenergy of fracturestable crack growth3-point bending testrefractory castablestiffnessApplications of ceramic materials usually involve thermal stresses that can reduce their lifetime considerably. One of the most relevant mechanical properties for evaluating thermal shock damage resistance is the energy of fracture. In order to obtain this property, a stable crack growth regimen must be achieved throughout the test. In this paper, three-point bending tests are analyzed to determine how machine stiffness influences load point displacement rates. Understanding the differences between recorded and adjusted displacement rates is important in determining the stability of crack growth. This statement is corroborated by experimental data on sintered high-alumina, low-cement refractory castables.Associação Brasileira de Cerâmica2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132008000300018Cerâmica v.54 n.331 2008reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69132008000300018info:eu-repo/semantics/openAccessPeret,C. M.Rodrigues,J. A.eng2008-11-06T00:00:00Zoai:scielo:S0366-69132008000300018Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2008-11-06T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Stability of crack propagation during bending tests on brittle materials
title Stability of crack propagation during bending tests on brittle materials
spellingShingle Stability of crack propagation during bending tests on brittle materials
Peret,C. M.
energy of fracture
stable crack growth
3-point bending test
refractory castable
stiffness
title_short Stability of crack propagation during bending tests on brittle materials
title_full Stability of crack propagation during bending tests on brittle materials
title_fullStr Stability of crack propagation during bending tests on brittle materials
title_full_unstemmed Stability of crack propagation during bending tests on brittle materials
title_sort Stability of crack propagation during bending tests on brittle materials
author Peret,C. M.
author_facet Peret,C. M.
Rodrigues,J. A.
author_role author
author2 Rodrigues,J. A.
author2_role author
dc.contributor.author.fl_str_mv Peret,C. M.
Rodrigues,J. A.
dc.subject.por.fl_str_mv energy of fracture
stable crack growth
3-point bending test
refractory castable
stiffness
topic energy of fracture
stable crack growth
3-point bending test
refractory castable
stiffness
description Applications of ceramic materials usually involve thermal stresses that can reduce their lifetime considerably. One of the most relevant mechanical properties for evaluating thermal shock damage resistance is the energy of fracture. In order to obtain this property, a stable crack growth regimen must be achieved throughout the test. In this paper, three-point bending tests are analyzed to determine how machine stiffness influences load point displacement rates. Understanding the differences between recorded and adjusted displacement rates is important in determining the stability of crack growth. This statement is corroborated by experimental data on sintered high-alumina, low-cement refractory castables.
publishDate 2008
dc.date.none.fl_str_mv 2008-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132008000300018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132008000300018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0366-69132008000300018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.54 n.331 2008
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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