stress, ductility, translational anisotropy, pipe layer

The multilayered thick-walled pipe which is under the influence of internal pressure is considered. It is supposed that each layer possesses the properties of anisotropy keeping value of a limit of fluidity to constants along parallel straight lines. The algorithm of definition of a limit tension is developed for any number of layers. In work [2] the limit condition of layered circular cylinders is investigated. Concept transmitting anisotropy was considered in works [3]–[7]. In work [8] the elasto-plastic condition of a two-layer transmitting and anisotropic pipe is investigated. The limit condition of a layered pipe with transmitting anisotropy was investigated also in [11]. In [10] authors it is studied elasto-plastic a condition of a pipe which limit of fluidity keeps constant value along parallel straight lines. The case when the limit of fluidity keeps constant value along concentric ellipses, is considered in [12]. 

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

2. Mironov, Boris Guryevich Dr. Sci. Phys. & Math., Professor, I. Yakovlev Chuvash State Pedagogical University, Cheboksary