Dierk Raabe Darmstadt T U Celebration Colloquium Mechanics Of Crystals

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Transcript of Dierk Raabe Darmstadt T U Celebration Colloquium Mechanics Of Crystals

  • 1. Moderne Methoden der Multiskalensimulation: Das Liebesleben der Hummer im Lichte von Quantenmechanik und Kontinuumstheorie
    M. Friak,S. Nikolov, D. Ma, F. Roters, J. Neugebauer, D. Raabe
    Hier: Mechanik der Kristalle
    19. Juni 2009, Kolloquium, TU Darmstadt

2. performance
large products
Motivation: Basics of crystal mechanics
processes
Understand macromechanics in terms of micromechanics
Micromechanics for products
3. 4. 5. 6. [111]
[-110]
[11-2]
Motivation: Basics of crystal mechanics
Small scale experiments
Complex microstructures
7. 6
Scales: exampleofmechanicalproperties
Length [m]
Top down
100
10-3
Mean field and boundary conditions (FE, FD, FFT)
Bottom up
Crystals (CPFEM, YS, HT)
10-6
Dislocations (DD, CA, KMC)
10-9
Structure of defects (DFT, MD)
Structure of matter (DFT)
Time [s]
10-9
103
10-15
10-3
8. 7
Overview

  • Versetzungsbasierte Kristall-FEM (CPFEM)

9. Indentierung 10. Ab initio und Kristallmechanik 11. KRZ Ti fr Implantate 12. Kristallmechanik von Chitin