Abstract
A new numerical contact model able to predict the interface debonding and damage considering Coulomb friction contact between debonded surfaces has been developed. A comparison of two variants of this model is presented from the mathematical point of view, the Linear Elastic–Brittle Interface Model (LEBIM) and the Cohesive Interface Model (CIM), both combined with frictional contact. The paper discusses the process of the interface debonding in the two subsequent fracture steps: (i) the crack initiation and (ii) the crack propagation in the fibre–matrix interface. The concept of the solution is approximated by a time-stepping procedure and a boundary element approach.
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