Continuous dislocation dynamics made simple
Intro -- Foreword -- Author biographies -- Alfonso Ngan -- Alireza Kalaei -- Chapter Introduction -- 1.1 Slip system and dislocations -- 1.2 Multiscale modeling of crystal plasticity and the meso-scale gap -- 1.3 CDD and why this book? -- References -- Chapter What are dislocation densities? -- 2.1...
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| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
Bristol, UK
IOP Publishing
2024
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| Schriftenreihe: | IOP ebooks
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Tag hinzufügen | Zusammenfassung: | Intro -- Foreword -- Author biographies -- Alfonso Ngan -- Alireza Kalaei -- Chapter Introduction -- 1.1 Slip system and dislocations -- 1.2 Multiscale modeling of crystal plasticity and the meso-scale gap -- 1.3 CDD and why this book? -- References -- Chapter What are dislocation densities? -- 2.1 Defects and their densities -- 2.2 Fine grained dislocation density -- 2.2.1 Bundle of parallel dislocations -- 2.2.2 Sub-dislocation density-intensive dislocation microstructures -- 2.3 Coarse grained dislocation density-extensive dislocation microstructures -- 2.3.1 Geometrically necessary dislocations (GNDs) and statistically stored dislocations (SSDs) -- 2.3.2 All-dislocation density (ADD) -- 2.4 The three distinctive length scales for dislocation plasticity -- References -- Chapter Kinematics of intensive line density: evolution laws and simulation codes -- 3.1 Maxwell's kinematics law for line density -- 3.2 Other forms of Maxwell's kinematics law -- 3.2.1 Movement-tilting form -- 3.2.2 Divergence-curvature form -- 3.2.3 Finite-difference form -- 3.3 Finite-difference numerical scheme -- 3.4 Simple MATLAB codes for line-density kinematics -- 3.4.1 Setting up line and coarse-graining into density -- 3.4.2 A basic MATLAB programme for expanding circle -- 3.4.3 Further considerations for solving line-density kinematics -- References -- Chapter Dynamics of intensive line density -- 4.1 Dynamics closure by velocity law -- 4.2 Mura's formula for long-range elastic interaction -- 4.2.1 Mura's formula for strain field of a dislocation loop -- 4.2.2 Mura's formula for continuous distribution of dislocations -- 4.3 Interaction within dislocation core -- 4.4 Simulation codes for internal interaction stress τint -- 4.4.1 Mura's elastic interaction -- 4.4.2 Applying long-range elastic and core interactions -- 4.4.3 Shrinkage of loop under self stress. This book introduces an exact approach to continuous dislocation dynamics based on the "all-dislocation" density (ADD), for mesoscopic simulation of coarse-grained dislocation microstructures. |
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| Beschreibung: | Literaturangaben |
| Beschreibung: | 1 Band (verschiedene Seitenzählungen) Illustrationen, Diagramme |
| ISBN: | 9780750363280 978-0-7503-6328-0 |