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| dc.contributor | Universitat de Barcelona |
|---|---|
| dc.contributor.author | Laurson, Lasse |
| dc.contributor.author | Miguel López, María del Carmen |
| dc.contributor.author | Alava, Mikko J. |
| dc.date | 2018-10-23T16:51:21Z |
| dc.date | 2018-10-23T16:51:21Z |
| dc.date | 2010 |
| dc.date | 2018-10-23T16:51:21Z |
| dc.identifier.citation | 0031-9007 |
| dc.identifier.citation | 592882 |
| dc.identifier.uri | http://hdl.handle.net/2445/125547 |
| dc.description.abstract | Dislocation assemblies exhibit a jamming or yielding transition at a critical external shear stress value ¼ c. Here we study the heterogeneous and collective nature of dislocation dynamics within a crystal plasticity model close to c, by considering the first-passage properties of the dislocation dynamics. As the transition is approached in the moving phase, the first-passage time distribution exhibits scaling, and a related peak dynamical susceptibility 4 diverges as 4 ð cÞ , with 1:1. We relate this scaling to an avalanche description of the dynamics. While the static structural correlations are found to be independent of the external stress, we identify a diverging dynamical correlation length y in the direction perpendicular to the dislocation glide motion. |
| dc.format | 4 p. |
| dc.format | application/pdf |
| dc.language.iso | eng |
| dc.publisher | American Physical Society |
| dc.relation | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.105.015501 |
| dc.relation | Physical Review Letters, 2010, vol. 105, p. 015501 |
| dc.relation | https://doi.org/10.1103/PhysRevLett.105.015501 |
| dc.rights | (c) American Physical Society, 2010 |
| dc.rights | info:eu-repo/semantics/openAccess |
| dc.subject | Dislocacions en cristalls |
| dc.subject | Resistència de materials |
| dc.subject | Cristal·lografia |
| dc.subject | Dislocations in crystals |
| dc.subject | Strength of materials |
| dc.subject | Crystallography |
| dc.title | Dynamical correlations near dislocation jamming |
| dc.type | info:eu-repo/semantics/article |
| dc.type | info:eu-repo/semantics/publishedVersion |
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