Mechanics of disclinated interfaces and cracks in polycrystalline an nanocrystalline materials
Gain boundaries (GBs) and crystal lattices in nanocrystalline materials contain defects, which may grow and induce failure of the materials. A critical issue for developing nanocrystalline materials is thus the modeling of material microstructures and constituent defects as well as the simulation of...
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| Format: | Theses and Dissertations |
| Published: |
2008
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| Online Access: | https://hdl.handle.net/10356/5572 |
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| Institution: | Nanyang Technological University |
| Summary: | Gain boundaries (GBs) and crystal lattices in nanocrystalline materials contain defects, which may grow and induce failure of the materials. A critical issue for developing nanocrystalline materials is thus the modeling of material microstructures and constituent defects as well as the simulation of their behavior under load. In particular, the disclination defect, commonly found in nanocrystalline materials, is investigated in this research. The research focuses on the description of material interfaces by a disclination dipole wall and on the investigation of cracks initiating from disclinations. |
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