Simulation of the irradiation effects in reactor materials : The REVE project

RPV-1: A Virtual Test Reactor to simulate irradiation effects in light water reactor pressure vessel steels

“…This means that the dislocation remains fixed in the simulation box (only displacements of atoms related to the box relaxation are allowed) and different positions of the defects as regards to the dislocation are considered. This approach is precisely described in [11], it can be summarized in the following way (Fig. 7) [24,82]:…”

“…The results are stored in the FORCE database as obtained or in an analytical form according to the nature of the hardening defect. Detailed results are published elsewhere [11].…”

“…This article is the second of a series aimed at presenting the codes and models used to build RPV-1 [10,11]. Its objective is to describe the structure of the tool and to show its limits and potentialities.…”

Overview of the RPV-2 and INTERN-1 packages: From primary damage to microplasticity

“…This includes the development of the numerical or theoretical tools and the experimental validation at the relevant scale. Seminal work to create an integrated tool taking into account the impact of reactor neutron spectrum on the production of defects affecting the microstructure was started in the REVE (REactor for Virtual Experiments) initiative [1][2][3]. From this initiative it appeared that the follow-up of the project had to reduce the empiricism of the models using specific experimental data to calibrate and validate some of the models present in the codes.…”

Modeling Microstructure and Irradiation Effects

“…For instance, subcascade formation in Fe is observed at PKA energies of 20 keV and above. [13] Simulations within the BCA with the TRIM code [14] indicate [15] that cascades produced by high energy PKAs split almost linearly into subcascades. Theoretical justification for this behavior was provided in Reference 16, which shows that for high PKA energies, where the BCA holds, the mean free path between two high energy collisions (which is proportional to the inverse cross section) is large compared to the cascade extension.…”