Methods of computer simulation, developed for hexagonal close-packed crystals, were used to analyze the motion of gliding dislocations through composite ensembles of point obstacles and vibrating forest dislocations. It was shown that the possibility of forest dislocations suffering forced vibrations increased the transparency of a composite ensemble. It was established that, as the amplitude of dislocation vibrations reached a certain limit which depended upon the strength of point obstacles, such obstacles in a composite ensemble almost completely lost their ability to hinder the motion of gliding dislocations.

Motion of Dislocations through Ensembles of Forest Dislocations and Point Obstacles upon the Simultaneous Action of Static and Cyclic Loads. B.M.Loginov, A.N.Proskurnin, E.V.Vershinin: Physics of the Solid State, 2002, 44[10], 1885-8