| Автор | Anton K Faradjian |
| Автор | Lawrence H Friedman |
| Автор | D C Chrzan |
| Дата выпуска | 1999-07-01 |
| dc.description | A continuum level simulation of dislocation dynamics has been developed and used to study the evolution of Frank-Read sources. The model is based on isotropic elasticity theory and includes the self-stress of the dislocations, as well as the dislocation-dislocation interactions. The critical stress of a Frank-Read source is calculated as a function of the source length. The simulations are used to study the strain produced by a Frank-Read source as a function of time. It is noted that the total area swept out by the source as a function of time t scales as t<sup>3</sup>. This scaling appears to hold for a linear dependence of the dislocation velocity on stress, as well as for a stress cubed dependence. It is noted that under some conditions, a subcritically stressed Frank-Read source may produce strain for a significant length of time before complete exhaustion of its motion. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Frank-Read sources within a continuum simulation |
| Тип | paper |
| DOI | 10.1088/0965-0393/7/4/301 |
| Electronic ISSN | 1361-651X |
| Print ISSN | 0965-0393 |
| Журнал | Modelling and Simulation in Materials Science and Engineering |
| Том | 7 |
| Первая страница | 479 |
| Последняя страница | 494 |
| Выпуск | 4 |
