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The problem of quasistatic and rate-independent evolution ofelastic-plastic-brittle delamination at small strains is considered.Delamination processes for linear elastic bodies glued by an adhesive to eachother or to a rigid outer surface are studied. The energy amounts dissipated infracture Mode I (opening) and Mode II (shear) at an interface may be different.A concept of internal parameters is used here on the delaminating interfaces,involving a couple of scalar damage variable and a plastic tangential slip withkinematic-type hardening. The so-called energetic solution concept is employed.An inelastic process at an interface is devised in such a way that thedissipated energy depends only on the rates of internal parameters andtherefore the model is associative. A fully implicit time discretization iscombined with a spatial discretization of elastic bodies by the BEM to solvethe delamination problem. The BEM is used in the solution of the respectiveboundary value problems, for each subdomain separately, to compute thecorresponding total potential energy. Sample problems are analysed by acollocation BEM code to illustrate the capabilities of the numerical proceduredeveloped.

BEM solution of delamination problems using an interface damage and plasticity model