Abstract
The critical (onset) strain εc of a serrated flow was predicted by phenomenological theory based on the strain-softening model. The critical strain predicted by the theory agreed quantitatively with experimental data. In particular, the theory could explain the relation between εc and strain rate ε: 3 ln εc=C+ln ε+E/RT without using the concept of a Cottrell atmosphere. Moreover, the increase in the critical strain for very small strain rates (the so-called type C serration) could also be simply explained by the theory.
Original language | English |
---|---|
Pages (from-to) | 236-243 |
Number of pages | 8 |
Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
Volume | 65 |
Issue number | 4 |
DOIs | |
Publication status | Published - Jan 1 2001 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry