Location of Repository


By L. Bortoloni and P. Cermelli


Abstract. Work hardening in crystalline materials is related to the accumulation of statistically stored dislocations in low-energy structures. We present here a model which includes dislocation dynamics in the rate-independent setting for plasticity. Three basic physical features are taken into account: (i) the role of dislocation densities in hardening; (ii) the relations between the slip velocities and the mobility of gliding dislocations; (iii)the energetics of self and mutual interactions between dislocations. The model unifies a number of different approaches to the problem presented in literature. Reaction-diffusion equation with mobility depending on the slip velocities are obtained for the evolution of the dislocations responsible of hardening. 1

Year: 2000
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://seminariomatematico.dm.... (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.