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Din avgränsning ger 27 träffar.

• 2009:17 Effect of Welding Residual Stresses on Crack Opening Displacement and Crack-Tip Parameters

  Weld residual stresses have a large influence on the behavior of cracks growing under normal operation loads and on the leakage-flow from a through-wall crack. Accurate prediction of these events is important ... evaluating the stress intensity factor K for cracks located in multi-dimensional weld residual stress fields in piping geometries. Another aim is to investigate the accuracy of existing methods to evaluate...

  Innehållstyp: Publikationer

• 2009:05 Survey on requirements for independent reviews and inspections of electrical and I&C equipment

  also an analysis of the differences between the electrical and mechanical field especially in the area of independent review. SSM will use the results from the survey to develop the system of independent ... Institute) was merged into one authority - SSM (Swedish Radiation Safety Authority). The publication of the report has been delayed and is now published in the name of SSM. This project was lead by the Department...

  Innehållstyp: Publikationer

• 2009:16 Influence of Hardening Model on Weld Residual Stress Distribution

  Weld residual stresses have a large influence on the behavior of cracks growing under normal operation loads and on the leakage-flow from a through-wall crack. Accurate prediction of these events is important ... present report is the result of an effort to acquire and to develop the latest research results in the field of WRS and especially the influence of hardening model. The choice of hardening model has been the...

  Innehållstyp: Publikationer

• 2009:35 Evaluation of SKB/Posiva’s report on the horizontal alternative of the KBS-3 method

  The KBS-3 method, based on multiple barriers, is the proposed spent fuel disposal method both in Sweden and Finland. The method has two design alternatives: the vertical (KBS-3V) and the horizontal (KBS-3H) ... Authority (SSM) considers that it is a proper time to evaluate the work carried by SKB and Posiva when this period of joint research is ended and a relatively complete set of reporting is available. SSM therefore...

  Innehållstyp: Publikationer

• 2009:32 On Younger Stakeholders and Decommissioning of Nuclear Facilities

  An appropriate balance in this regard must be based on a proper understanding of the values and value functions of younger citizens. Such information must thus be an integral part of the knowledge base ... Kalmar in Sweden in the year 2006. Bogumila Tyszkiewicz and Bea Labor SSM English An appropriate balance in this regard must be based on a proper understanding of the values and value functions of younger...

  Innehållstyp: Publikationer

• 2009:22 Alternative modelling of brittle structures in a sub-area of the SKB candidate area at Forsmark, eastern Sweden

  repository for spent nuclear fuel. The structures in the rock, together with the regional stress field, affect the mechanical stability of the bedrock and the ground water transport within the bedrock ... chemistry. Together, these factors have influence on the environment within which transport of substances may occur, both in the near- and the far-field of the geological repository. The Swedish Nuclear...

  Innehållstyp: Publikationer

• 2009:12 Evaluating safety-critical organizations – emphasis on the nuclear industry

  The regulator identified a few years ago a need for a better understanding of and a deeper knowledge on methods for evaluating safety critical organisations. There is a need for solid assessment methods ... safety focus. Teemu Reiman and Pia Oedewald SSM English The regulator identified a few years ago a need for a better understanding of and a deeper knowledge on methods for evaluating safety critical organisations...

  Innehållstyp: Publikationer

• 2009:07 Dependency Analysis Guidance Nordic/German Working Group on Common Cause Failure analysis

  Phase 2 The Regulatory Code SSMFS 2008:1 of Swedish Radiation Safety Authority (SSM) includes requirements regarding the performance of probabilistic safety assessments (PSA), as well as PSA activities ... follow-up of these activities is part of the inspection tasks of SSM. According to the SSMFS 2008:1, the safety analyses shall be based on a systematic identification and evaluation of such events, event...

  Innehållstyp: Publikationer

• 2009:33 Workshop on spent fuel performance, radionuclide chemistry and geosphere transport parameters, Lidingö 2008: Overview and evaluation of recent SKB procedures

  suggestions for methodology development and to develop review capability within the SSM. The authors conclude that SKB’s treatment of uncertainty in speciation calculations has improved, but that additional ... featured in SKB safety assessment, but it is not clear that the use of such distributions is based on a firm understanding of its properties. Regarding fuel performance, while safety assessment parameters...

  Innehållstyp: Publikationer

• 2009:15 Improvement and Validation of Weld Residual Stress Modelling Procedure

  Weld residual stresses have a large influence on the behavior of cracks growing under normal operation loads and on the leakage-flow from a through-wall crack. Accurate prediction of these events is important ... research results in the field of WRS. The major changes applied in the new weld residual stress modelling procedure are: Improved procedure for heat source calibration based on use of analytical solutions...

  Innehållstyp: Publikationer