Engineering Mechanics

Proceedings Vol. 25 (2019)

ENGINEERING MECHANICS 2019

Copyright © 2019 Institute of Thermomechanics of the Czech Academy of Sciences, Prague

 

Popov A. L., Chelyubeev D. A., Levitin A., Kozintsev V. M., Chentsov A. V.:
pages 295 - 298, full text

The stress state estimates accounting for plasticity are obtained at residual stress evaluation performed by hole-drilling method and out-of-plane ESPI. The plasticity zone in the sample is present prior to the probe hole drilling. The sample is a steel composite disc, assembled by fitting rings on the plug. The initial stress distribution in the composite elastic-ideal plastic disk accounting for the formation of a plastic zone in the covering ring is obtained by the solution of Gadolin in elastoplastic formulation. A simple analytical algorithm to adjust the non-axisymmetric stresses in comparison with the calculation according to the elastic model is developed. The case of probe hole drilling in the area of plastic deformations is considered.

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