Abstract
The paper considers the influence of multiscale plastic flow localization on rotational deformation modes and σ-ɛ curves by analyzing the entropy production and equation of state of a deformed solid. It is shown that if the rotational deformation modes are fully self-consistent, the σ-ɛ curve changes monotonically. If not, the curve reveals jerks or serrations due to nonlinear wave relaxation of stresses associated with macroscale non-compensated material rotations. At high loading rates, the rotational deformation modes attain self-consistency by the mechanism of dynamic rotations.
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Original Russian Text © V.E. Egorushkin, V.E. Panin, A.V. Panin, 2014, published in Fizicheskaya Mezomekhanika, 2014, Vol. 17, No. 2, pp. 19–23.
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Egorushkin, V.E., Panin, V.E. & Panin, A.V. Influence of multiscale localized plastic flow on stress-strain patterns. Phys Mesomech 18, 8–12 (2015). https://doi.org/10.1134/S1029959915010026
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DOI: https://doi.org/10.1134/S1029959915010026