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https://hdl.handle.net/2445/13249
Title: | Dislocation jamming and Andrade creep |
Author: | Miguel López, María del Carmen Vespignani, Alessandro, 1965- Zaiser, Michael Zapperi, Stefano |
Keywords: | Ciència dels materials Cristal·lografia Resistència de materials Dislocacions en cristalls Materials science Crystallography Strength of materials Dislocations in crystals |
Issue Date: | 2002 |
Publisher: | American Physical Society |
Abstract: | We simulate the glide motion of an assembly of interacting dislocations under the action of an external shear stress and show that the associated plastic creep relaxation follows Andrades law. Our results indicate that Andrade creep in plastically deforming crystals involves the correlated motion of dislocation structures near a dynamic transition separating a flowing from a jammed phase. Simulations in the presence of dislocation multiplication and noise confirm the robustness of this finding and highlight the importance of metastable structure formation for the relaxation process. |
Note: | Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.89.165501 |
It is part of: | Physical Review Letters, 2002, vol. 89, núm. 16, p. 165501-1-165501-4 |
URI: | https://hdl.handle.net/2445/13249 |
Related resource: | http://dx.doi.org/10.1103/PhysRevLett.89.165501 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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513972.pdf | 130.04 kB | Adobe PDF | View/Open |
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