logo logo

Workgroup WP5 Soteria project meeting, EDF Lab Les Renardières, France, March 6. - 8. 2017

SOTERIA project (»Safe long term operation of light water reactors based on improved understanding of radiation effects in nuclear structural materials«) is a four-year European project, which began on September 1st 2015 under the auspices of the EURATOM program Horizon 2020. The main objective of the project is to improve understanding of the aging phenomena of steels, which are used for the pressurized water reactor vessels and its internal components. With the research in the field of steel aging regulators and operators will have key information required for safe and long-term operation of the existing European nuclear power plants. The project involves a number of European research centres (including JSI) as well as industrial partners. The project coordinator is CEA, France.

At the Workgroup WP5 meeting, which deals with the modelling and simulations, the results of the work in the first 18 months of the project were presented. JSI is involved in:

  • development of a crystal plasticity model for mechanical description of stainless steels irradiated with neutrons and,
  • modelling of intergranular boundaries, to simulate the formation of early damage or cracks.

At the meeting the JSI, together with IRSN and CNRS presented a comparison of the two methods - the finite element method and the Fast Fourier Transform method - in the case of tensile stress of irradiated polycrystalline aggregate. The title of the presentation was: »Polycrystalline simulations of irradiated stainless steel: FEM versus FFT«.

The meeting in Les Renardierès was organized by EDF from March 6. - 8. 2017 and was attended by Dr. Samir El Shawish from the Institute "Jozef Stefan" Reactor Engineering Division.

classical view