Arzhela ROPERCH is currently a PhD student at CEA. Her thesis director is Franck Ledoux, HDR Engineer Researcher at CEA and her co-director is Jean-Christophe Janodet, University Professor at the University of Evry, Paris-Saclay. Arzhela’s thesis topic is the following: “ Reinforcement learning for topological optimization of block-structured meshes”. The aim of this thesis is to develop a reinforcement learning method based on actor-critic algorithm, combined with Monte-Carlo tree search. This method is expected to speed up learning for topological optimization problems involving heaxahedral meshes.