Volterra dislocation

Volterra dislocation

[vol′ter·ə ‚dis·lō′kā·shən]
(solid-state physics)
A model of a dislocation which is formed in a ring of crystalline material by cutting the ring, moving the cut surfaces over each other, and then rejoining them.
References in periodicals archive ?
n], is then found as the critical stress needed to propagate Somigliana loops, in the same way as the yield threshold is found in crystal plasticity as the stress to move Volterra dislocation loops.
as is observed for Volterra dislocations in crystalline solids.