Influence of multiscale localized plastic flow on stress-strain patterns |
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| Authors: | V E Egorushkin V E Panin A V Panin |
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| Institution: | 1.Institute of Strength Physics and Materials Science, Siberian Branch,Russian Academy of Sciences,Tomsk,Russia |
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| Abstract: | The paper considers the influence of multiscale plastic flow localization on rotational deformation modes and σ-? 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-? 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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