Influence of the initial deformation of the thick plate on contact interaction with parabolic punch
Journal Title: Вісник Тернопільського національного технічного університету - Year 2017, Vol 85, Issue 1
Abstract
Calculating the strength of structural elements and mechanisms is one of the most important stages in the process of their design. Residual deformation is almost always available in the structural elements and machine parts. Resultant stress can cause fracture and accelerate some phase transitions, corrosion in particular. To improve the accuracy of calculations the residual deformations must be taken into account. In the article the solution of axisymmetric contact problem of pressure a parabolic punch for an elastic isotropic half-space, taking into account preliminary stresses is described. Besides distribution function of contact stresses and displacements for the plane boundary of semi-space was created. The authors have shown influence of residual stress on the distribution of contact stresses under the punch.
Authors and Affiliations
Hryhorii Habrusiev, Iryna Habrusieva
Keywords
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