metal phosphate binder and a mixture of strength, heat resistance, vybivaemost, environmental friendliness, flexibility, quality castings.

Piecewise linear plastic potentials within the framework of the theory of the thermal stresses concerning to shrink fit The boundary problem in the theory of the thermal stresses on shrink fit of cylinder shaped details is solved. The peculiarities of the task formulation and the methods for solution of this task using piecewise linear plastic potentials are considering. The numerical algorithms are proposed in case, when the temperature stresses, sequentially changing under variable yield point, could correspond to different planes and fins of an yield surface. It’s mentioned, that such changes at configuration of the plastic flow are influencing considerably on forming of the resulting interference.

Illarionov Ilya Egorovich e-mail: tmilp@rambler.ru, Doctor of Technical Sciences, Professor, Chuvash State University, Cheboksary, Russia.