WPMM Expert Group on Multi-scale Modelling of Fuels (EGM2F)

Ongoing

Under the guidance of the Nuclear Science Committee (NSC) and under the mandate of the Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems (WPMM), the objective of the Expert Group on Multiscale Modelling of Fuel (EGM2F) is to share and support the development of a multi-scale modelling approach of fuels in support of current fuel optimisation programmes and innovative fuel design.

Objectives

The objectives of the expert group are to:

assess the worldwide multi-scale modelling approaches devoted to nuclear fuels from the atomic to the macroscopic scale in order to share and promote such approaches
address all types of fuels: both current (mainly oxide fuels) and advanced fuels (such as minor actinide containing oxides fuels, carbide, nitride, metallic fuels)
address key engineering issues associated with each type of fuel
assess the quality of existing links between the various scales and define the remaining development necessary to strengthen multi-scale modelling approaches
identify the most relevant experimental data or experimental characterisation techniques that are missing for validation of fuel multi-scale modelling
promote exchange between the actors involved at various scales
promote exchange between multi-scale modelling experts and experimentalists.

External publication

Tonks, M. et al., "Unit mechanisms of fission gas release: Current understanding and future needs", Journal of Nuclear Materials, vol. 504, June 2018, Elsevier, pp. 300-317, doi: doi.org/10.1016/j.jnucmat.2018.03.016.

Contact

WPMM Secretariat

Activities

results

Nuclear Science Committee (NSC)

The NEA nuclear science programme is developed and executed by the Nuclear Science Committee (NSC), comprising high-level scientific experts from all NEA member countries.

Working Party on Multi-scale Modelling of Fuels and Structural Materials for Nuclear Systems (WPMM)

The Working Party on Multi-scale Modelling of Fuels and Structural Material for Nuclear Systems (WPMM) was established to deal with the scientific and engineering aspects of fuels and structural materials, aiming at establishing multi-scale models and simulations as validated predictive tools for the design of nuclear systems, fuel fabrication and performance.

See

WPMM Expert Group on Multi-scale Modelling Methods (EGM3)

Under the guidance of the Nuclear Science Committee (NSC) and under the mandate of the Working Party on Multi-scale Modelling of Materials (WPMM), the scope of the Expert Group on Multi-scale Modelling Methods (EGM3) is to provide an overview of the various methods and levels of models used for modelling materials for the nuclear industry (fuels and structural materials).

See

WPMM Expert Group on Primary Radiation Damage (EGPRD)

The main objectives of this expert group are to assess the limitations of the NRT-dpa standard, in the light of both atomistic simulations and known experimental discrepancies; and to revisit the NRT-dpa standard and examine the possibility of proposing a new improved standard of primary damage characteristics.

WPMM Expert Group on Structural Materials Modelling (EGSMM)

The objective of the Expert Group on Structural Materials Modelling (EGSMM) is to provide a critical review of the state-of-the-art concerning the use of a MMA to describe the changes induced by irradiation in SNMs.

WPMM Expert Group on Validation and Benchmarks of Methods (EGVBM)

The objectives of the expert group are to assess the accuracy and calculation time of the various first principle tools applied in the assessment of the properties of the nuclear materials; assess the accuracy and calculation time of the various classical molecular dynamic tools applied in the assessment of the properties of the nuclear materials; and define the needs for the development of the tools applied in the benchmarks.

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