plasticity, heterogeneity, pipe, anisotropy, pressure.

The nonhomogeneous thick-walled tube under internal pressure. It is assumed that it retains the yield strength value is constant along parallel lines. Defined stress condition for the pipe. In [2] studied the limiting condition of the pipe when the anisotropy of the Mises – Hill. Translational anisotropy introduced in [3]–[7]. In [8] considered the elastic-plastic state of the two-the translation and anisotropic pipe. Limit state of laminated tubes in the presence of the translational anisotropy was studied in [10], [13]. The elastoplastic state of the inhomogeneous pipe is considered in [11], [12].

Nikitin, Andrey Vitalevich Postgraduate student, Departament of Mathematical Analysis, I. Yakovlev Chuvash State Pedagogical University, Cheboksary