Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model

After the Fukushima Daiichi nuclear power plant accident due to the pacific coast of Tohoku earthquake and Tsunami, we have been developing an analysis method considering creep damage mechanisms based on three-dimensional analysis in order to estimate condition of the fuel debris and failure behavio...

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Autores principales:	Yoshihito YAMAGUCHI, Jinya KATSUYAMA, Yoshiyuki NEMOTO, Yoshiyuki KAJI, Hiroyuki YOSHIDA, Yinsheng LI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	fukushima daiichi severe accident uni-axial tensile and creep test creep constitutive law Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/c345bbd22c2e4c439d6254c95639cfe5
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spelling	oai:doaj.org-article:c345bbd22c2e4c439d6254c95639cfe52021-11-26T07:12:45ZDevelopment of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model2187-974510.1299/mej.15-00694https://doaj.org/article/c345bbd22c2e4c439d6254c95639cfe52017-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/6/4_15-00694/_pdf/-char/enhttps://doaj.org/toc/2187-9745After the Fukushima Daiichi nuclear power plant accident due to the pacific coast of Tohoku earthquake and Tsunami, we have been developing an analysis method considering creep damage mechanisms based on three-dimensional analysis in order to estimate condition of the fuel debris and failure behavior of the reactor due to severe accidents for the early completion of the decommissioning of nuclear power plants. We have also been obtaining material properties that are not provided in existing databases or literature for the analysis. In this study, we measure the tensile and creep properties of low alloy steel, Ni-based alloy, and stainless steel at high temperatures near the melting points. Using experimental data, some parameters for the creep constitutive law and creep failure evaluation method are determined. It is confirmed that the estimated rupture time by the failure evaluation method agree well with the experimental one.Yoshihito YAMAGUCHIJinya KATSUYAMAYoshiyuki NEMOTOYoshiyuki KAJIHiroyuki YOSHIDAYinsheng LIThe Japan Society of Mechanical Engineersarticlefukushima daiichisevere accidentuni-axial tensile and creep testcreep constitutive lawMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 6, Pp 15-00694-15-00694 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	fukushima daiichi severe accident uni-axial tensile and creep test creep constitutive law Mechanical engineering and machinery TJ1-1570
spellingShingle	fukushima daiichi severe accident uni-axial tensile and creep test creep constitutive law Mechanical engineering and machinery TJ1-1570 Yoshihito YAMAGUCHI Jinya KATSUYAMA Yoshiyuki NEMOTO Yoshiyuki KAJI Hiroyuki YOSHIDA Yinsheng LI Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
description	After the Fukushima Daiichi nuclear power plant accident due to the pacific coast of Tohoku earthquake and Tsunami, we have been developing an analysis method considering creep damage mechanisms based on three-dimensional analysis in order to estimate condition of the fuel debris and failure behavior of the reactor due to severe accidents for the early completion of the decommissioning of nuclear power plants. We have also been obtaining material properties that are not provided in existing databases or literature for the analysis. In this study, we measure the tensile and creep properties of low alloy steel, Ni-based alloy, and stainless steel at high temperatures near the melting points. Using experimental data, some parameters for the creep constitutive law and creep failure evaluation method are determined. It is confirmed that the estimated rupture time by the failure evaluation method agree well with the experimental one.
format	article
author	Yoshihito YAMAGUCHI Jinya KATSUYAMA Yoshiyuki NEMOTO Yoshiyuki KAJI Hiroyuki YOSHIDA Yinsheng LI
author_facet	Yoshihito YAMAGUCHI Jinya KATSUYAMA Yoshiyuki NEMOTO Yoshiyuki KAJI Hiroyuki YOSHIDA Yinsheng LI
author_sort	Yoshihito YAMAGUCHI
title	Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
title_short	Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
title_full	Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
title_fullStr	Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
title_full_unstemmed	Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model
title_sort	development of failure evaluation method for bwr lower head in severe accident; high temperature creep test and creep damage model
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/c345bbd22c2e4c439d6254c95639cfe5
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Development of failure evaluation method for BWR Lower head in severe accident; high temperature creep test and creep damage model

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