A misorientation dependent grain boundary yield criterion | Zendy

Prahs Andreas | Zendy; Bayerschen Eric | Zendy; Böhlke Thomas | Zendy

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A misorientation dependent grain boundary yield criterion

Author(s) -

Prahs Andreas,

Bayerschen Eric,

Böhlke Thomas

Publication year - 2015

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.201510163

Subject(s) - misorientation , grain boundary , dislocation , yield (engineering) , boundary (topology) , materials science , work (physics) , constant (computer programming) , geometry , plasticity , flow (mathematics) , mathematics , condensed matter physics , mathematical analysis , composite material , physics , thermodynamics , microstructure , computer science , programming language

An equivalent plastic strain gradient theory, cf. [1], is extended by a GB flow rule, that accounts for the misorientation of adjacent grains. In contrast to previous works, the grain boundary (GB) resistance against plastic flow is not treated as a constant parameter. Therefore, in the work at hand, the grain boundary dislocation density (GBD), cf. [2], is used as a measure for geometrical mismatch between all glide system orientations of two adjacent grains. (© 2015 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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