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Defect assessment in nuclear components: R and D related to industrial problems - synthesis of the research, training and teaching activities; Analyse de nocivite de defauts dans les structures nucleaires: R et D associee aux problemes industriels - synthese des activites de recherche, d'encadrement et d'enseignement

Abstract

Nuclear industry pays a particular attention to structures integrity problems: well-aware of the possible catastrophic consequence of a major accident, everything is carried out to minimise the risk of such a situation. From the design, and during all the operating life of the plant, a high level of safety is required and checks by the safety authorities, on the basis of reports made by the operator. These two entities ask for R and D activities to support the improvement of the knowledge of the phenomena already identified (as in the case of the vessel of the PWR) or to bring some element of understanding to situation not considered yet, up to the first incident (as in 1998 with the fatigue problems in the thermal mixing zone, at the origin of the Civaux arrest). Among the CEA teams concerned with these problems, the Laboratory of the Structures Integrity and of Normalisation aims to study the integrity problems in metallic nuclear structures leaning on exceptional experimental means: the RESEDA platform allows the realisation of large-scaled tests on analytical tests (representative of analysed phenomena) to reproduce the industrial situation, linked to various and accurate equipment for the measures and the analyses. Three industrial  More>>
Authors:
Publication Date:
Jun 15, 2007
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-6157
Resource Relation:
Other Information: TH: These specialite: sciences pour l'ingenieur. Secteur de recherche: mecanique des materiaux et des tructures; 99 refs
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; COMPUTERIZED SIMULATION; CRACK PROPAGATION; DYNAMIC LOADS; FERRITIC STEELS; FINITE ELEMENT METHOD; FRACTURE MECHANICS; MECHANICAL TESTS; PIPES; PLASTICITY; PRESSURE VESSELS; PWR TYPE REACTORS; RESIDUAL STRESSES; STRESS INTENSITY FACTORS; TEST FACILITIES; WELDED JOINTS
OSTI ID:
20998844
Research Organizations:
Poitiers Univ., 86 (France); CEA Saclay, Dept. Modelisation de Systemes et Structures, Lab. d'Integrite des Structures et de Normalisation, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0800261023329
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
92 pages
Announcement Date:
Apr 11, 2008

Citation Formats

Marie, St. Defect assessment in nuclear components: R and D related to industrial problems - synthesis of the research, training and teaching activities; Analyse de nocivite de defauts dans les structures nucleaires: R et D associee aux problemes industriels - synthese des activites de recherche, d'encadrement et d'enseignement. France: N. p., 2007. Web.
Marie, St. Defect assessment in nuclear components: R and D related to industrial problems - synthesis of the research, training and teaching activities; Analyse de nocivite de defauts dans les structures nucleaires: R et D associee aux problemes industriels - synthese des activites de recherche, d'encadrement et d'enseignement. France.
Marie, St. 2007. "Defect assessment in nuclear components: R and D related to industrial problems - synthesis of the research, training and teaching activities; Analyse de nocivite de defauts dans les structures nucleaires: R et D associee aux problemes industriels - synthese des activites de recherche, d'encadrement et d'enseignement." France.
@misc{etde_20998844,
title = {Defect assessment in nuclear components: R and D related to industrial problems - synthesis of the research, training and teaching activities; Analyse de nocivite de defauts dans les structures nucleaires: R et D associee aux problemes industriels - synthese des activites de recherche, d'encadrement et d'enseignement}
author = {Marie, St}
abstractNote = {Nuclear industry pays a particular attention to structures integrity problems: well-aware of the possible catastrophic consequence of a major accident, everything is carried out to minimise the risk of such a situation. From the design, and during all the operating life of the plant, a high level of safety is required and checks by the safety authorities, on the basis of reports made by the operator. These two entities ask for R and D activities to support the improvement of the knowledge of the phenomena already identified (as in the case of the vessel of the PWR) or to bring some element of understanding to situation not considered yet, up to the first incident (as in 1998 with the fatigue problems in the thermal mixing zone, at the origin of the Civaux arrest). Among the CEA teams concerned with these problems, the Laboratory of the Structures Integrity and of Normalisation aims to study the integrity problems in metallic nuclear structures leaning on exceptional experimental means: the RESEDA platform allows the realisation of large-scaled tests on analytical tests (representative of analysed phenomena) to reproduce the industrial situation, linked to various and accurate equipment for the measures and the analyses. Three industrial thematics represent to main part of my research activities at CEA in the fracture mechanics field: - the industrial case of the PWR vessel is related to brittle fracture of the ferritic steels, - the piping components, related to ductile tearing and fracture in the brittle-to-ductile domain, - the high temperature fracture mechanics for the components submitted to very complex loadings. (author)}
place = {France}
year = {2007}
month = {Jun}
}