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arXiv · 2203.08711

Inelastic rotations and pseudo-turbulent plastic avalanches in crystals

R. Baggio·O. U. Salman·L. Truskinovsky
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Abstract

Plastic deformations in crystals often produce textures in the form of randomly oriented patches of the unstressed lattice. We use a novel mesoscopic Landau-type model of crystal plasticity to show that in such textures large crystallographic lattice rotations can originate from a highly coordinated inelastic slip at the microscale. Our numerical experiments show that dislocation avalanches, which lead to the formation of such rotations, involve pseudo-turbulent motions with power-law distributed spatial correlations.

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R. Baggio, O. U. Salman, L. Truskinovsky. 2022-03-16. Inelastic rotations and pseudo-turbulent plastic avalanches in crystals. https://doi.org/10.1103/physreve.107.025004

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