Thermodynamic dislocation theory: Size effect in torsion
| Autor: | Khanh Chau Le, Yinguang Piao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Condensed Matter - Materials Science Materials science Condensed matter physics Mechanical Engineering Nucleation Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Torsion (mechanics) chemistry.chemical_element 02 engineering and technology Strain rate 021001 nanoscience & nanotechnology 01 natural sciences Copper Condensed Matter::Materials Science chemistry Mechanics of Materials 0103 physical sciences General Materials Science Dislocation 0210 nano-technology |
| Zdroj: | International Journal of Plasticity. 115:56-70 |
| ISSN: | 0749-6419 |
| Popis: | The thermodynamic dislocation theory developed for non-uniform plastic deformations is used here for the analysis of twisted copper wires. With a small set of physical parameters that we expect to be independent of strain rate and temperature, we can simulate the torque-twist curves that match the experimental ones of Liu et al. (2012). It is shown that the size effect results from the accumulation and pile-up of excess dislocations. Comment: 23 pages, 12 figures. arXiv admin note: substantial text overlap with arXiv:1806.04304, arXiv:1803.04838 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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