A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Interdisciplinar de Pesquisa em Engenharia |
Texto Completo: | https://periodicos.unb.br/index.php/ripe/article/view/21383 |
Resumo: | Steam generator tubes are critical parts in the safety and operability of nuclear power plants. Thus, the degradation in steam generator tubes must be prevented. These tubes are subjected to the degradation mechanism of stress corrosion cracking, which is characterized by several uncertainties. The assessment of structural reliability of the steam generator tubes is essential for preventing the occurrence of failure events. In the present work, a study is carried out for assessing the structural reliability of the steam generator tubes containing cracks, by using first order second-moment (FOSM) concepts. The limit state function is based on a limit load model provided by Eletric Power Research Institute (2001), which describes the failure criterion. The applicability of the FOSM method as a methodology for predicting the reliability of steam generator tubes is checked by comparing results of calculated failure probability with ones obtained from Monte Carlo simulation. The FOSM method has provided a non-conservative reliability assessment for the steam generator tubes containing cracks, and are eligible for estimating the failure probability of this safety-critical structure. |
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A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATIONFracture mechanics. Structural reliability. FOSM method.Steam generator tubes are critical parts in the safety and operability of nuclear power plants. Thus, the degradation in steam generator tubes must be prevented. These tubes are subjected to the degradation mechanism of stress corrosion cracking, which is characterized by several uncertainties. The assessment of structural reliability of the steam generator tubes is essential for preventing the occurrence of failure events. In the present work, a study is carried out for assessing the structural reliability of the steam generator tubes containing cracks, by using first order second-moment (FOSM) concepts. The limit state function is based on a limit load model provided by Eletric Power Research Institute (2001), which describes the failure criterion. The applicability of the FOSM method as a methodology for predicting the reliability of steam generator tubes is checked by comparing results of calculated failure probability with ones obtained from Monte Carlo simulation. The FOSM method has provided a non-conservative reliability assessment for the steam generator tubes containing cracks, and are eligible for estimating the failure probability of this safety-critical structure.Programa de Pós-Graduação em Integridade de Materiais da Engenharia2017-01-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/ripe/article/view/2138310.26512/ripe.v2i15.21383Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 115-124Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 115-1242447-6102reponame:Revista Interdisciplinar de Pesquisa em Engenhariainstname:Universidade de Brasília (UnB)instacron:UNBenghttps://periodicos.unb.br/index.php/ripe/article/view/21383/19726Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPEinfo:eu-repo/semantics/openAccessFrancisco, Alexandre SantosBerthou, Ronan2019-06-16T02:51:55Zoai:ojs.pkp.sfu.ca:article/21383Revistahttps://periodicos.unb.br/index.php/ripePUBhttps://periodicos.unb.br/index.php/ripe/oaianflor@unb.br2447-61022447-6102opendoar:2019-06-16T02:51:55Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB)false |
dc.title.none.fl_str_mv |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
title |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
spellingShingle |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION Francisco, Alexandre Santos Fracture mechanics. Structural reliability. FOSM method. |
title_short |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
title_full |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
title_fullStr |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
title_full_unstemmed |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
title_sort |
A FOSM-BASED RELIABILITY ASSESSMENT OF STEAM GENERATOR TUBES UNDER CRACKING DEGRADATION |
author |
Francisco, Alexandre Santos |
author_facet |
Francisco, Alexandre Santos Berthou, Ronan |
author_role |
author |
author2 |
Berthou, Ronan |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Francisco, Alexandre Santos Berthou, Ronan |
dc.subject.por.fl_str_mv |
Fracture mechanics. Structural reliability. FOSM method. |
topic |
Fracture mechanics. Structural reliability. FOSM method. |
description |
Steam generator tubes are critical parts in the safety and operability of nuclear power plants. Thus, the degradation in steam generator tubes must be prevented. These tubes are subjected to the degradation mechanism of stress corrosion cracking, which is characterized by several uncertainties. The assessment of structural reliability of the steam generator tubes is essential for preventing the occurrence of failure events. In the present work, a study is carried out for assessing the structural reliability of the steam generator tubes containing cracks, by using first order second-moment (FOSM) concepts. The limit state function is based on a limit load model provided by Eletric Power Research Institute (2001), which describes the failure criterion. The applicability of the FOSM method as a methodology for predicting the reliability of steam generator tubes is checked by comparing results of calculated failure probability with ones obtained from Monte Carlo simulation. The FOSM method has provided a non-conservative reliability assessment for the steam generator tubes containing cracks, and are eligible for estimating the failure probability of this safety-critical structure. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21383 10.26512/ripe.v2i15.21383 |
url |
https://periodicos.unb.br/index.php/ripe/article/view/21383 |
identifier_str_mv |
10.26512/ripe.v2i15.21383 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.unb.br/index.php/ripe/article/view/21383/19726 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Revista Interdisciplinar de Pesquisa em Engenharia - RIPE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
publisher.none.fl_str_mv |
Programa de Pós-Graduação em Integridade de Materiais da Engenharia |
dc.source.none.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia; Vol. 2 No. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 115-124 Revista Interdisciplinar de Pesquisa em Engenharia; v. 2 n. 15 (2016): IDENTIFICATION AND RIABILITY OF STRUCTURES; 115-124 2447-6102 reponame:Revista Interdisciplinar de Pesquisa em Engenharia instname:Universidade de Brasília (UnB) instacron:UNB |
instname_str |
Universidade de Brasília (UnB) |
instacron_str |
UNB |
institution |
UNB |
reponame_str |
Revista Interdisciplinar de Pesquisa em Engenharia |
collection |
Revista Interdisciplinar de Pesquisa em Engenharia |
repository.name.fl_str_mv |
Revista Interdisciplinar de Pesquisa em Engenharia - Universidade de Brasília (UnB) |
repository.mail.fl_str_mv |
anflor@unb.br |
_version_ |
1798315226145226752 |