Abstract
Experiments have shown the strong rotation in plastic deformation, which is caused by the disclination, specific arrangement of dislocation and inhomogeneity of the gliding motion of the defects in the microscopic scale. Based on the microscopic mechanism of the rotational plastic deformation, the conservation equation satisfied by the defects motion (dislocation and disclination) has been developed in this paper. Then the diffusion motion of the defects are reduced based on the asymmetric theory of continuum mechanics. By utilizing the maximization procedure for the micro plastic work and a scale-invariance argument, various models of Cosserat-type plasticity are obtained in this manner.
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Communicated by Yang Gui-tong
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Jian, G., Xiao-ling, L. A Physical theory of asymmetric plasticity. Appl Math Mech 16, 493–506 (1995). https://doi.org/10.1007/BF02459348
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DOI: https://doi.org/10.1007/BF02459348