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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Motivation: Linear Crystal Plasticity
verfasst von : Paul Steinmann
Erschienen in: Geometrical Foundations of Continuum Mechanics
Verlag: Springer Berlin Heidelberg
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Mono-crystals display various defects that may potentially act as obstacles to further evolution of inelastic deformations, i.e. to further plastic flow. These are translational defects in terms of (primary and secondary) dislocations, rotational defects in terms of disclinations, and (dilatational) point-defects in terms of lattice vacancies or interstitial atoms. Formulations of generalized crystal plasticity incorporate the densities of these defects in order to capture the hardening of the material. In particular the inclusion of the defect densities other than the dislocation density requires to root the formulation in a second-order continuum description.