Din avgränsning ger 302 träffar.
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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 -
2018:18 Procedure for Safety Assessment of Components with Defects
– Handbook Edition 5...
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 -
2018:11 Bedömning av spännkraftförluster genom deformationsmätning av reaktorinneslutningen vid uppstart – DEFORM
Bakgrund Den strukturella integriteten av reaktorinneslutningen är beroende av spännarmeringens spännkraft. Spännkraften minskar med tiden genom bl.a. omlagring till själva betongen. I byggnormen finns standardformler som beaktar dessa förluster men lite kunskap finns gällande hur inneslutningens unika geometri och miljö har för inverkan på spännkraftsförlusterna.
Innehållstyp: Publikationer -
2018:17 Assessment of structures subject to concrete pathologies (ASCET), phase 2
Background ASCET is an international research project initiated by WGIAGE1 OECD2 / NEA3. WGIAGE4 Concrete subgroup is a working group within the OECD / NEA whose task is to address issues concerning the maintenance of the integrity of concrete structures, proposals for general principles to optimally handle the challenges of integrity, especially with regard to aging of concrete structures.
Innehållstyp: Publikationer -
2019:02 Research within technical safeguard at Chalmers University of Technology during 2016-2017
Summary The Division of Subatomic and Plasma Physics in Chalmers, formerly the Division of Nuclear Engineering, has performed research in nuclear safeguards and non-proliferation since 2004, with support from SSM and its predecessor, SKI. Due to various organizational and personnel changes in Chalmers, this research was pursued with limited resources and personnel during 2016-06-30 –...
Innehållstyp: Publikationer -
2011:17 Structural Health Monitoring of Piping in Nuclear Power Plants – A Review of Efficiency of Existing Methods
SSM needs to acquire knowledge about new applied Non-Destructive Engineering (NDE) techniques and their efficiency. One area that is discussed more frequently is Structural Health Monitoring (SHM). SSM needs to investigate the international experiences of SHM from the nuclear industry. SSM also wants to have more information about the capabilities and the limitations of NDE methods The first...
Innehållstyp: Publikationer -
2016:37 PARTRIDGE project: Review and evaluation of the probabilistic fracture mechanics code PRO-LOCA
Background The Swedish Radiation Safety Authority (SSM) and the Swedish nuclear power plant owners have financed Inspecta Technology in Sweden to evaluate the PRO-LOCA code. It is a computer code, developed by Battelle in the USA, in which the leak- and rupture probabilities of piping in nuclear power plants are analysed. The pipe systems may contain the damage mechanisms fatigue and/or...
Innehållstyp: Publikationer -
2015:50 Assessment of structures subject to concrete pathologies (ASCET)
Many Nuclear Power Plants around the world are at the moment approaching, or in, their Long Term Operation stage of their operational phase. In addition, several NPPs have recently been carrying out uprate and life extension projects and comprehensive maintenance work including the exchange of components important to safety, in order to extend their lifetime. As a result, ageing management...
Innehållstyp: Publikationer