Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary

Buildings, structures and systems of large scale and high value (e.g. conventional and nuclear power plants, etc.) are designed for a certain, limited service lifetime. If the standards and guidelines of the time are taken into account during the design process, the resulting structures will operate...

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Main Author: Tamás Fekete
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2016-03-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_9.pdf
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author Tamás Fekete
author_facet Tamás Fekete
author_sort Tamás Fekete
collection DOAJ
description Buildings, structures and systems of large scale and high value (e.g. conventional and nuclear power plants, etc.) are designed for a certain, limited service lifetime. If the standards and guidelines of the time are taken into account during the design process, the resulting structures will operate safely in most cases. However, in the course of technical history there were examples of unusual, catastrophic failures of structures, even resulting in human casualties. Although the concept of Structural Integrity first appeared in industrial applications only two-three decades ago, its pertinence has been growing higher ever since. Four nuclear power generation units have been constructed in Hungary, more than 30 years ago. In every unit, VVER-440 V213 type light-water cooled, light-water moderated, pressurized water reactors are in operation. Since the mid-1980s, Pressurized Thermal Shock (PTS) analyses of Reactor Pressure Vessels (RPV) have been conducted in Hungary, where the concept of structural integrity was the basis of research and development. In the first part of the paper, a short historic overview is given, where the origins of the Structural Integrity concept are presented, and the beginnings of Structural Integrity in Hungary are summarized. In the second part, a new conceptual model of Structural Integrity is introduced. In the third part, a brief description of the VVER-440 V213 type RPV and its surrounding primary system is presented. In the fourth part, a conceptual model developed for PTS Structural Integrity Analyses is explained.
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publisher Gruppo Italiano Frattura
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spelling doaj-art-941a61c098eb4636a95fc9b51acca9182025-01-03T01:02:46ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-03-011036789810.3221/IGF-ESIS.36.09Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in HungaryTamás Fekete0HAS Centre for Energy Research,HungaryBuildings, structures and systems of large scale and high value (e.g. conventional and nuclear power plants, etc.) are designed for a certain, limited service lifetime. If the standards and guidelines of the time are taken into account during the design process, the resulting structures will operate safely in most cases. However, in the course of technical history there were examples of unusual, catastrophic failures of structures, even resulting in human casualties. Although the concept of Structural Integrity first appeared in industrial applications only two-three decades ago, its pertinence has been growing higher ever since. Four nuclear power generation units have been constructed in Hungary, more than 30 years ago. In every unit, VVER-440 V213 type light-water cooled, light-water moderated, pressurized water reactors are in operation. Since the mid-1980s, Pressurized Thermal Shock (PTS) analyses of Reactor Pressure Vessels (RPV) have been conducted in Hungary, where the concept of structural integrity was the basis of research and development. In the first part of the paper, a short historic overview is given, where the origins of the Structural Integrity concept are presented, and the beginnings of Structural Integrity in Hungary are summarized. In the second part, a new conceptual model of Structural Integrity is introduced. In the third part, a brief description of the VVER-440 V213 type RPV and its surrounding primary system is presented. In the fourth part, a conceptual model developed for PTS Structural Integrity Analyses is explained.http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_9.pdfStructural IntegrityStructural Integrity AnalysesReactor Pressure VesselsPressurized Thermal ShockMethodology
spellingShingle Tamás Fekete
Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
Fracture and Structural Integrity
Structural Integrity
Structural Integrity Analyses
Reactor Pressure Vessels
Pressurized Thermal Shock
Methodology
title Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
title_full Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
title_fullStr Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
title_full_unstemmed Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
title_short Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary
title_sort methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in hungary
topic Structural Integrity
Structural Integrity Analyses
Reactor Pressure Vessels
Pressurized Thermal Shock
Methodology
url http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_9.pdf
work_keys_str_mv AT tamasfekete methodologicaldevelopmentsinthefieldofstructuralintegrityanalysesoflargescalereactorpressurevesselsinhungary