The processes of deformation and destruction of finite-thickness targets during the high-velocity impingement of a group of compact impactors were numerically simulated. Three-dimensional calculations with the use of the finite-element method were performed within the framework of an elastoplastic model of the medium. The final stages of the formation of through holes were simulated using complete destruction criteria. Simple criteria for estimating the mutual influence of the impactors and the character of destruction of the target at various incidence angles and distances between the impactors were obtained.
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