Plane constrained uniaxial extension of a single crystal strip

Within continuum dislocation theory the plane constrained uniaxial extension of a single crystal strip deforming in single or double slip is analyzed. For the single and symmetric double slip, the closed-form analytical solutions are found which exhibits the energetic and dissipative thresholds for...

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Bibliographic Details
Published in:International journal of plasticity 2009-10, Vol.25 (10), p.1950-1969
Main Authors: Le, K.C., Sembiring, P.
Format: Article
Language:English
Subjects:
A. Dislocations
A. Microstructures
A. Yield condition
B. Crystal plasticity
C. Energy methods
Condensed matter: structure, mechanical and thermal properties
Defects and impurities in crystals
microstructure
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Inelasticity (thermoplasticity, viscoplasticity...)
Linear defects: dislocations, disclinations
Physics
Solid mechanics
Structural and continuum mechanics
Structure of solids and liquids
crystallography
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Summary:Within continuum dislocation theory the plane constrained uniaxial extension of a single crystal strip deforming in single or double slip is analyzed. For the single and symmetric double slip, the closed-form analytical solutions are found which exhibits the energetic and dissipative thresholds for dislocation nucleation, the Bauschinger translational work hardening, and the size effect. Numerical solutions for the non-symmetric double slip are obtained by finite element procedures.
ISSN:0749-6419
1879-2154
DOI:10.1016/j.ijplas.2008.12.010