THEORETICAL AND APPLIED MECHANICS

     TEORIJSKA I PRIMENJENA MEHANIKA  2006 Vol.33(1), pp.65-90

Summary: 

                       Nelli N.Alexandrova, Sergei Alexandrov,
                                   Paulo M. M. Vila Real

Analysis of stress and strain in a rotating disk mounted
on a rigid shaft

The plane state of stress in an elastic-perfectly plastic isotropic rotating annular disk mounted on a rigid shaft is studied. The analysis of stresses, strains and displacements within the disk of constant thickness and density is based on the Mises yield criterion and its associated flow rule. It is observed that the plastic deformation is localized in the vicinity of the inner radius of the disk, and the disk of a su±ciently large outer radius never becomes fully plastic. The semi-analytical method of stress-strain analysis developed is illustrated by some numerical examples.