Bending of a single crystal: discrete dislocation and nonlocal crystal plasticity simulations
نویسندگان
چکیده
منابع مشابه
Discrete Crystal Plasticity
This article is concerned with the development of a discrete theory of crystal elasticity and dislocations in crystals. The theory is founded upon suitable adaptations to crystal lattices of elements of algebraic topology and differential calculus such as chain complexes and homology groups, differential forms and operators, and a theory of integration of forms. In particular, we define the lat...
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/department of mechanical engineering Introduction In plastic deformations, which arise due to the motion of dislocations in crystalline microstructure, size effects cannot be neglected at a small scales of observation. Within each grain of a polycrystal, the grain boundaries act as natural obstacles to dislocation motion. Due to the stresses dislocations exert onto each other, dislocations wil...
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ژورنال
عنوان ژورنال: Modelling and Simulation in Materials Science and Engineering
سال: 2004
ISSN: 0965-0393,1361-651X
DOI: 10.1088/0965-0393/12/6/002