Mezzo-scopic Analysis of Fracture Toughness in Steels

Detalhes bibliográficos
Autor(a) principal: Miyata,Takashi
Data de Publicação: 2002
Outros Autores: Tagawa,Tetsuya
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392002000200001
Resumo: The cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels can be described as a function of the yield stress, the cleavage fracture stress, and other mechanical properties of the materials. Formulation of the cleavage fracture toughness was first examined through an investigation on correlation between the cleavage toughness and the cleavage fracture stress obtained in notched round bar specimens in accordance with the theoretical prediction. Then, the scatter of the toughness, specimen thickness effect on the toughness, deterioration of the toughness due to cold working and irradiation, and improvement of the toughness caused by the Ni addition, were analyzed through the formulation of the toughness.
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spelling Mezzo-scopic Analysis of Fracture Toughness in Steelscleavage fracture toughnesslocal criterion approachweibull stressformulation of toughnessthickness effectdeterioration of toughnesssteelsThe cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels can be described as a function of the yield stress, the cleavage fracture stress, and other mechanical properties of the materials. Formulation of the cleavage fracture toughness was first examined through an investigation on correlation between the cleavage toughness and the cleavage fracture stress obtained in notched round bar specimens in accordance with the theoretical prediction. Then, the scatter of the toughness, specimen thickness effect on the toughness, deterioration of the toughness due to cold working and irradiation, and improvement of the toughness caused by the Ni addition, were analyzed through the formulation of the toughness.ABM, ABC, ABPol2002-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392002000200001Materials Research v.5 n.2 2002reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392002000200001info:eu-repo/semantics/openAccessMiyata,TakashiTagawa,Tetsuyaeng2002-09-05T00:00:00Zoai:scielo:S1516-14392002000200001Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2002-09-05T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Mezzo-scopic Analysis of Fracture Toughness in Steels
title Mezzo-scopic Analysis of Fracture Toughness in Steels
spellingShingle Mezzo-scopic Analysis of Fracture Toughness in Steels
Miyata,Takashi
cleavage fracture toughness
local criterion approach
weibull stress
formulation of toughness
thickness effect
deterioration of toughness
steels
title_short Mezzo-scopic Analysis of Fracture Toughness in Steels
title_full Mezzo-scopic Analysis of Fracture Toughness in Steels
title_fullStr Mezzo-scopic Analysis of Fracture Toughness in Steels
title_full_unstemmed Mezzo-scopic Analysis of Fracture Toughness in Steels
title_sort Mezzo-scopic Analysis of Fracture Toughness in Steels
author Miyata,Takashi
author_facet Miyata,Takashi
Tagawa,Tetsuya
author_role author
author2 Tagawa,Tetsuya
author2_role author
dc.contributor.author.fl_str_mv Miyata,Takashi
Tagawa,Tetsuya
dc.subject.por.fl_str_mv cleavage fracture toughness
local criterion approach
weibull stress
formulation of toughness
thickness effect
deterioration of toughness
steels
topic cleavage fracture toughness
local criterion approach
weibull stress
formulation of toughness
thickness effect
deterioration of toughness
steels
description The cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels can be described as a function of the yield stress, the cleavage fracture stress, and other mechanical properties of the materials. Formulation of the cleavage fracture toughness was first examined through an investigation on correlation between the cleavage toughness and the cleavage fracture stress obtained in notched round bar specimens in accordance with the theoretical prediction. Then, the scatter of the toughness, specimen thickness effect on the toughness, deterioration of the toughness due to cold working and irradiation, and improvement of the toughness caused by the Ni addition, were analyzed through the formulation of the toughness.
publishDate 2002
dc.date.none.fl_str_mv 2002-06-01
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=S1516-14392002000200001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392002000200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392002000200001
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.5 n.2 2002
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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