On the theory of plasticity, associated with a new integral characteristic of shearing stresses

[摘要] A new invariant of stress tensor is introduced - the mean shearing stress, resulted from the integration with respect to Mohr's circle. The invariant is used to lay down the terms of plasticity. Determining equations are written on the basis of associated flow law. Rigid variants of the model and elastoplastic ones are obtained. Characteristic surfaces with normals, coinciding with main stresses direction are demonstrated for the rigid-plastic variant.

[发布机构] Yugra Institute of Technology, TPU Affiliate, Yurga, Russia^1;Institute of Mining of Siberian Branch of RAS, Novosibirsk, Russia^2

[效力级别] 经济学 [学科分类] 工业工程学

[关键词] Characteristic surfaces;Determining equation;Elasto-plastic;Integral characteristics;Invariant of stress;Mohr's circles;Shearing stress;Theory of plasticity