engleski

Building up the Hollow Cylinder Having Inner Surface of Crystallization Stage

The model of building up viscoelastic two phase heated body is developped. The model is based on the ground of the creep theory general equations for non-uniformly ageing bodies taking account of interaction the mechanical and thermal fields. Application of Boltzmann strain superposition in time principle and introducing the function of non-uniform ageing, made possible to obtain the characteristik equation of elastoplastical non-uniform bodies in the form of Volterra integral equations with shift. The analytical solution of the problem of building up hollow viscoelastic cylinder, having the inner liquid phase, modelling the process of centrifugal casting of pipes, is solved. It is shown that taking into account the creep, disclose the essential sresses dependence, including residual ones, of building up velocity.

viscoelastic cylinder; liquid phase; modelling

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