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Micromechanical Simulation of the Hall-Petch Effect with a Crystal Gradient Theory including a Grain Boundary Yield Criterion.
- Source :
- PAMM: Proceedings in Applied Mathematics & Mechanics; Dec2013, Vol. 13 Issue 1, p15-18, 4p
- Publication Year :
- 2013
-
Abstract
- A viscoplastic strain gradient crystal plasticity theory based on the gradient of the equivalent plastic strain ∇γ<subscript> eq</subscript> is proposed. A grain boundary yield condition is introduced. The microstructural explanation of the Hall-Petch effect, accounting for notch-like stress concentrations at the grain boundary as a result of discrete slip bands, is reviewed. Periodic tensile test FEM simulation results illustrate the prediction of the numerical model. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16177061
- Volume :
- 13
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- PAMM: Proceedings in Applied Mathematics & Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 92662149
- Full Text :
- https://doi.org/10.1002/pamm.201310005