Residual Stresses and Deformations at Ring - Shaped Disks in Thermal Field (Plasticity Criteria)

摘要

The present paper presents the theoretical method for determination of the deformations and the loss of stability of the disk stressed by an axial - symmetric thermal field, variable according to disk radius and thickness, superposed with a field of membrane tensions given by the rotational motion. The experimental results confirm the theoretical hypothesis. This paper also presents the tension and deformation state of the disks being in a non - stationary field of temperature. The study is done until the plastic deformations occur.