Effective-Temperature Induced Shear Banding in the Shear-Transformation-Zone Theory of Plasticity

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This paper examines the stability of a previously proposed version of the shear-transformation-zone (STZ) theory of plasticity where the total STZ population is determined by an effective temperature and compares it to experimental results for a metallic glass. In particular, the addition of effective temperature dynamics to the shear transformation zone theory leads to the existence of a range of strain rates for which the strain localizes into shear bands. Yet while the steady-state results qualitatively agree, the instability of the dynamics of the system while loading begins better describes the experimental observations.
12 pages, 14 figures

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/114741

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0608451
 http://arxiv.org/abs/cond-mat/0608451

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arXiv