Enabling strain hardening simulations with dislocation dynamics

Numerical algorithms for discrete dislocation dynamics simulations are investigated for the purpose of enabling strain hardening simulations of single crystals on massively parallel computers. The algorithms investigated include the calculation of forces, the equations of motion, time integration, a...

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Bibliographic Details
Published in:Modelling and simulation in materials science and engineering 2007-09, Vol.15 (6), p.553-595
Main Authors: Arsenlis, A, Cai, W, Tang, M, Rhee, M, Oppelstrup, T, Hommes, G, Pierce, T G, Bulatov, V V
Format: Article
Language:English
Subjects:
Applied mathematics
Condensed matter physics
Defects and diffusion
Defekter och diffusion
Fysik
Kondenserade materiens fysik
MATEMATIK
Materials science
MATHEMATICS
NATURAL SCIENCES
NATURVETENSKAP
Numerical analysis
Numerisk analys
Physics
TECHNOLOGY
TEKNIKVETENSKAP
Teknisk materialvetenskap
Tillämpad matematik
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Summary:Numerical algorithms for discrete dislocation dynamics simulations are investigated for the purpose of enabling strain hardening simulations of single crystals on massively parallel computers. The algorithms investigated include the calculation of forces, the equations of motion, time integration, adaptive mesh refinement, the treatment of dislocation core reactions and the dynamic distribution of data and work on parallel computers. A simulation integrating all these algorithmic elements using the Parallel Dislocation Simulator (ParaDiS) code is performed to understand their behaviour in concert and to evaluate the overall numerical performance of dislocation dynamics simulations and their ability to accumulate percent of plastic strain.
ISSN:0965-0393
1361-651X
1361-651X
DOI:10.1088/0965-0393/15/6/001