Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503005 | Scripta Materialia | 2006 | 5 Pages |
Abstract
Discrete dislocation calculations suggest that statistical effects are important in the modeling of crystal plasticity. These include: (i) effects of source limited plasticity; (ii) statistical variations of dislocation sources and obstacles in small volumes; and (iii) the sensitivity of the discrete dislocation predictions to small perturbations. Implications of these for phenomenological constitutive models and for statistical theories of the collective behavior of dislocations are discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A. Needleman, E. Van der Giessen, V.S. Deshpande,