A cohesive model coupling friction and adhesion for interfaces and fractures. Applications
Résumé
A model coupling adhesion, friction and unilateral contact taking into account viscosity effects is given. Damage is considered by using the notion of intensity of adhesion first introduced by M. Frémond. The variational formulation is given as variational inequalities for quasistatic problems. The dynamics is solved with the Non Smooth Contact Dynamics method of Moreau-Jean. This model is used to simulate both debonding interfaces and ductile crack propagation. Applications are first presented in composite mechanics (interaction of cracks and fiber/matrix interfaces), civil engineering (steel/concrete interface for reinforced concrete). An extension to healing adhesion is presented for rubber/glass contact. Results on an undergoing research related to earthquake analysis is presented where this behavior law is used to simulate the contact between tectonic plates
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