Elastoplastic Invariant Relation for Deformation of Alkali-Halide Crystals

Abstract:

Plastic strain localization patterns in compression-strained alkali halide (NaCl, KCl, and LiF) crystals have been studied using a double-exposure speckle photography technique. The main parameters of strain localization autowaves at the linear stages of deformation hardening in alkali halide crystals have been determined. A quantitative relationship between the macroscopic parameters of plastic flow localization and microscopic parameters of strained alkali halide crystals has been established.

• Periodical: Advanced Materials Research (Volume 1085)
• Pages: 340-344
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1085.340
• Online since: February 2015
• Authors: Svetlana A. Barannikova*, Mikhail V. Nadezhkin, Lev B. Zuev
• Keywords: Alkali Halide Crystals, Autowaves, Double-Exposure Speckle Photography, Elastoplastic Invariant Relation, Photoelasticity, Strain Localization

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