A finite difference procedure to simulate the dynamic debonding of material interfaces under impact and wave loading conditions is presented. The change of the physical configuration caused by interfacial debonding is modelled using a weighted average of two neighbouring solutions, without the need to adapt the computational mesh. A wave absorbing technique is used to concentrate the cmoputational efforts on a kernel area near the interface. The dynamic contact response of debonded portions of the interface is also considered. Numerical examples are presented.
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