High performance computing and discrete dislocation dynamics: Plasticity of micrometer sized specimens

High Performance Computing in Science and Engineering 2008 - Transactions of the High Performance Computing Center Stuttgart, HLRS 2008

Volumn , Issue , 2009, Pages 507-523

  Weygand, D ^a   Senger, J ^a   Motz, C ^a   Augustin, W ^a   Heuveline, V ^a   Gumbsch, P ^a  

^a KARLSRUHE INSTITUTE OF TECHNOLOGY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

APPLICATION PROGRAMMING INTERFACES (API); BENDING TESTS;

DEFORMATION BEHAVIOUR; DISCRETE DISLOCATION DYNAMICS; HIGH PERFORMANCE COMPUTING; INITIAL MICROSTRUCTURES; METALLIC STRUCTURES; MICRO-STRUCTURAL; SIZE DEPENDENCY; UNI-AXIAL LOADING;

PLASTICITY;

EID: 84883095369     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1007/978-3-540-88303-6_36     Document Type: Conference Paper

References (23)

1. N.A. Fleck; G.M. Muller; M.F. Ashby; J.W. Hutchinson. Strain gradient plasticity: Theory and experiment. Acta Metall. et Mater., 42:475-487, 1994.
2. M.D. Uchic; D.M. Dimiduk; J.N. Florando; W.D. Nix. Samples dimensions influence strength and crystal plasticity. Science, 305:986-989, 2004.
3. C.A. Volkert; E.T. Lilleodden. Size effects in the deformation of sub-micron au columns. Phil. Mag., 86(33-35):5567-5579, 2006.
4. D. Kiener; W. Grosinger; G. Dehm; R. Pippan. A further step towards an understanding of size-dependent crystal plasticity: In situ tension experiments of miniaturized single-crystal copper samples. Acta Mater., 56:580-592, 2008.
5. W.D. Nix; J.R. Greer; G. Feng; E.T. Lilleodden. Deformation at the nanometer and micrometer length scales: Effects of strain gradients and dislocation starvation. Thin Solid Films, 515:3152-3157, 2007.
6. B. von Blanckenhagen; P. Gumbsch; E. Arzt. Dislocation sources and the flow stress of polycrystalline thin metal films. Phil. Mag. Lett., 83(1):1-8, 2003.
7. B. von Blanckenhagen; E. Arzt; P. Gumbsch. Discrete dislocation simulation of plastic deformation in metal thin films. Acta Mater., 52:773-784, 2004.
8. J.R. Greer; C.R. Weinberger; W. Cai. Comparing the strength of f.c.c. and b.c.c. sub-micrometer pillars: Compression experiments and dislocation dynamics simulations. Mat. Sci. Eng. A, doi:10.1016/j.msea.2007.08.093, 2008.
9. A.S. Budiman; S.M. Han; J.R. Greer; N. Tamura; J.R. Patel; W.D. Nix. A search for evidence of strain gradient hardening in au submicron pillars under uniaxial compression using synchrotron x-ray microdiffraction. Acta Mater., 56:602-608, 2008.
10. D.M. Dimiduk; M.D. Uchic; S.I. Rao; C. Woodward; T.A. Parthasarathy. Overview of experiments on microcrystal plasticity in fcc-derivative materials: selected challenges for modelling and simulation of plasticity. Mod. Sim. Mat. Sci. Eng., 15:135-146, 2007.
11. T.A. Parthasarathy; S.I. Rao; D.M. Dimiduk; M.D. Uchic; D.R. Trinkle. Contribution to size effect of yield strength from the stochastics of dislocation source lengths in finite samples. Scripta Mater., 56:313-316, 2007.
12. D.M. Dimiduk; M.D. Uchic; T.A. Parthasarathy. Size-affected single-slip behavior of pure nickel microcrystals. Acta Mater., 53:4065-4077, 2005.
13. F.F. Csikor; C. Motz; D. Weygand; M. Zaiser; S. Zapperi. Dislocation avalanches, strain bursts, and the problem of plastic forming at the micrometer scale. Science, 318:251-254, 2007.
14. D. Weygand; L.H. Friedman; E. van der Giessen; A. Needleman. Aspects of boundary-value problem solutions with three-dimensional dislocation dynamics. Mod. Sim. Mat. Sci. Eng., 10:437-468, 2002.
15. H.D. Espinosa; M. Panico; S. Berbenni; K.W. Schwarz. Discrete dislocation dynamics simulations to interpret plasticity size and surface effects in freestanding fcc thin films. Int. J. Plast., 22:2091-2117, 2006.
16. A. Arsenlis; W. Cai; M. Tang; M. Rhee; T. Oppelstrup; G. Hommes; T.G. Pierce; V.V. Bulatov. Enabling strain hardening simulations with dislocation dynamics. Mod. Sim. Mat. Sci. Eng., 15:553-595, 2007.
17. J. Senger; D. Weygand; P. Gumbsch; O. Kraft. Discrete dislocation simulations of the plasticity of micro-pillars under uniaxial loading. Scripta Mater., 58:587-590, 2008.
18. E. van der Giessen; A. Needleman. Discrete dislocation plasticity: a simple planar model. Mod. Sim. Mat. Sci. Eng., 3:689-735, 1995.
19. J. Senger; D. Weygand; C. Motz; P. Gumbsch; O. Kraft. Uniform loading of micro-pillars with variable aspect ratio simulated with discrete dislocation dynamics. in preparation, 2008.
20. C. Motz; T. Schöberl; R. Pippan. Mechanical properties of micro-sized copper bending beams machined by the focused ion beam technique. Acta Mater., 53:4269-4279, 2005.
21. C. Motz; D. Weygand; J. Senger; P. Gumbsch. Micro-bending tests: A comparison between three-dimensional discrete dislocation dynamics simulations and experiments. Acta Mater., 56:1942-1955, 2008.
22. H. Gao; Y. Huang; W.D. Nix; J.W. Hutchinson. Jour. Mech. Phys. Sol., 47: 1239, 1999.
23. V.S. Deshpande; A. Needleman; E. van der Giessen. Dislocation dynamics is chaotic. Scripta Mater., 45:1047-1053, 2001.