The dynamics of a closed dislocation loop, following a change in the sense of the shear stress on the slip plane, was considered. It was shown that, upon the collapse of a dislocation loop which encircled some region of elementary crystallographic slip, a significant concentration of energy release within localized volumes was possible upon collapse.

The Dynamics of the Collapse of a Dislocation Loop. L.E.Popov, S.N.Kolupaeva, N.A.Vikhor, A.V.Grafkova: Physics of Metals and Metallography, 1999, 87[1], 1-3