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1 Zeszyty Naukowe Politechniki Białostockiej. Mechanika

1 2001

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Opisanie neuprogogo povedenija materialov pri složnom nagruženii v ramkach teorij plastičnosti i polzučesti, učityvajuščich fazu podobija deviatorov

Kadaševič Ju., Pomytkin S.

Zeszyty Naukowe Politechniki Białostockiej. Mechanika

2001

Z. 24

215--218

Inelastic material behaviour depended from view of stress state is researched. In the framework of incremental theory with isotropic-kinematic hardening the common approach to the formulation of constitutive plastic and creep equations is proposed. The procedure is based on the Novozhilov's relations extracting the role of phase of coaxial tensors. It is demonstrated that the analogical equations can be formulated from the assumption about existence of potential yield function. Plasticity and creep models to describe the material behaviour under the complex loading and deforming as in experiments are proposed.