Din avgränsning ger 751 träffar.
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2011:19 Experimental evaluation of influence from residual stresses on crack initiation and ductile crack growth at high primary loads
Cracked components are usually subjected to loads causing both primary and secondary stresses, e.g. welding components. Engineering assessment approaches, such as the ASME XI code and the R6 procedure, are commonly used to conduct integrity assessment of such components. There has been an ongoing debate how to treat secondary stresses using engineering assessment methods. The nature of these...
Innehållstyp: Publikationer -
2011:29 Research and Development Program in Reactor Diagnostics and Monitoring with Neutron Noise Methods, Stage 17
This report constitutes Stage 17 of a long-term research and development program concerning the development of diagnostics and monitoring methods for nuclear reactors. Results up to Stage 16 were reported in SKI and SSM reports, as listed below and in the Summary. The results have also been published in international journals and have been included in both licentiate- and doctor’s degrees.
Innehållstyp: Publikationer -
2012:07 Implementation of the Master Curve method in ProSACC
Cleavage fracture toughness data display normally large amount of statistical scatter in the transition region. The cleavage toughness data in this region is specimen size-dependent, and should be treated statistically rather than deterministically. The Master Curve (MC) methodology is a procedure for mechanical testing and statistical analysis of fracture toughness of ferritic steels in the...
Innehållstyp: Publikationer -
2012:03 The IAEA Integrated Regulatory Review Service Mission to Sweden in February 2012
The Swedish Government decided on January 22, 2009 to mandate the Swedish Radiation Safety Authority, SSM, to apply for an international review of the Author-ity and its areas of supervision, an ‘IRRS’ (Integrated Regulatory Review Service) carried out by the International Atomic Energy Agency (IAEA). On February 25, 2009, SSM made a formal request to the IAEA for an IRRS in Sweden. The time...
Innehållstyp: Publikationer -
2014:09 Further Development of the Core Simulator CORE SIM: Extension to coupled capabilities for BWRs
The developed tool is fully MatLab based and requires a set of input data from a commercial static core simulator. The driving perturbation can be specified both as a perturbation in thermo-hydraulic parameters or directly as a perturbation in macroscopic cross-sections. As output, the 3-dimensional spatial distribution of the noise in coolant density, pressure, enthalpy, inlet velocity, fuel...
Innehållstyp: Publikationer -
2011:33 Mathematical modelling of ultrasonic testing of components with defects close to a non-planar surface
The report describes work that has been performed in order to model ultrasonic testing of components that contain a defect close to a non-planar surface. The studies have been performed in both 2D and 3D, and in 2D in both the anti-plane (SH) and the in-plane (P-SV). The results show that the presence of a non-planar back wall can reduce the detectability of defects close to the surface. The...
Innehållstyp: Publikationer -
2011:18 Strålsäkerhetsläget vid de svenska kärnkraftverken 2010
Enligt Strålsäkerhetsmyndighetens (SSM:s) regleringsbrev ska myndigheten senast den 31 maj 2011 till regeringen redovisa strålsäkerhetsläget vid de svenska kärnkraftverken. Föreliggande rapport utgör denna redovisning. 100 SSM SSM Svenska Enligt Strålsäkerhetsmyndighetens (SSM:s) regleringsbrev ska myndigheten senast den 31 maj 2011 till regeringen...
Innehållstyp: Publikationer -
2018:12 Upparbetning av använt kärnbränsle med icke-vätskebaserade metoder
Bakgrund Sverige har en exportlagstiftning för kontroll av utförsel av speciellt känslig utrustning som kan användas för bl.a. tillverkning av kärnvapen. Syftet är att förhindra att någon stat eller organisation införskaffar sådana vapen. Utrustningen det är frågan om har ofta en legitim användning i civil industri men kan ha...
Innehållstyp: Publikationer -
2018:16 APRI 9 – Accident Phenomena of Risk Importance
En lägesrapport om forskningen inom området svåra haverier under åren 2015-2017.
Innehållstyp: Publikationer -
2018:10 Tillståndsbedömningar av betongstrukturer inom kärnkraft – BEKON
Bakgrund Bedömning av tillståndet hos betongkonstruktioner i kärntekniska anläggningar är en central del i en säker förvaltning av kärntekniska anläggningar. De svenska anläggningarna blir äldre och många har gått eller är på väg att gå in i långtidsdrift vilket gör att tillståndet hos betongkonstruktionerna...
Innehållstyp: Publikationer