Multiphysics modeling of adhesive interface with damage

Sebastien d'Andrea (1) , Stéphane Lejeunes (2) , Frédéric Lebon (3) , Victor Blanc (1) , Marc Lainet (4) , Thomas Helfer (5)

1 LECIM - Laboratoire d'Etude de Conception et Irradiation Multi-filières
2 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]
3 M&S - Matériaux et Structures
4 LEVA - Laboratoire d'Expertise et de Validation des Applications combustibles multi-filières
5 LSC - Laboratoire de Simulation du Comportement des Combustibles

In the context of fuel-cladding interaction modelling in fast nuclear reactors, a multiphysics cohesive zone model of an adhesive interface with damage is proposed in this work. For the moment, only traction/compression behaviour can be described with this model. The effects of temperature, mechanical state, damage and chemical reactions are incorporated in adhesive links modelling. Thermal conductivity is affected by damage. In traction, we model elastic-brittle behaviour which depends on temperature and adhesive links. In compression, we model solid-solid contact.

Mots clés: Adhesive interface; Multiphysics; Damage

Domaines: Physique Nucléaire Expérimentale [nucl-ex]; Matériaux

Sebastien d'Andrea, Stéphane Lejeunes, Frédéric Lebon, Victor Blanc, Marc Lainet, et al.. Multiphysics modeling of adhesive interface with damage. Congrès Français de Mécanique, Association Française de Mécanique, Aug 2022, Nantes, France. ⟨hal-03888639⟩