NEA Mandates and Structures

Expert Group on Multi-scale Modelling Methods

Chair(s): Ram DEVANATHAN, United States
Secretary:  Davide COSTA
Vice-Chair(s): Sergei DUDAREV, United Kingdom
Member(s):All NEA member countries
Full participant(s): European Commission
Under the NEA Statute
Observer(s)(International Organisation): International Atomic Energy Agency (IAEA)
By agreement
Date of creation:30 June 2009
End of mandate:29 June 2021

Mandate (Document reference):

Mandate (Document extract):

Extract from document [NEA/SEN/NSC/WPMM(2019)1]


Under the guidance of the Nuclear Science Committee (NSC) and under the mandate of the Working Party on Multiscale Modelling of Materials (WPMM), the objective of the Expert Group on Multiscale Modelling Methods (EGM3) is to provide a state of the art of the various methods and levels of models used for modelling materials for the nuclear industry (fuels and structural materials). The state of the art includes an overview of the methods but also the possibilities and limits of linking different scales.


The objectives of the expert group are to:

  1. Assess the possibilities and limits of both numerical methods applied to multiscale modelling of materials for nuclear energy and means to link them, in written form:

2. Explore the possibility of computing materials properties via data driven model generation and validation.

3. Foster exchange of experience and dissemination of knowledge gained by applying multiscale tools to fuels and structural materials.