Geometrically necessary dislocations

Geometrically necessary dislocations are like-signed dislocations needed to accommodate for plastic bending in a crystalline material.[1] They are present when a material's plastic deformation is accompanied by internal plastic strain gradients.[2] They are in contrast to statistically stored dislocations, with statistics of equal positive and negative signs, which arise during plastic flow from multiplication processes like the Frank-Read source.

  1. ^ Cai, Wei; Nix, William D. (2016-09-15). Imperfections in crystalline solids. Cambridge University Press. ISBN 9781107123137. OCLC 927400734.
  2. ^ H., Courtney, Thomas (2005). Mechanical behavior of materials. Waveland Press. ISBN 978-1577664253. OCLC 894800884.{{cite book}}: CS1 maint: multiple names: authors list (link)