Experiment-calculated research of the influence of the shot-peening strengthening upon the low-cycle fatigue of the gas turbine parts with the stress concentrator

Abstract


The finite-element technique of the deflected mode of the gas turbine parts in the stress concentration zone with the residual stress after shot-peening strengthening has been developed here. The deflected mode in the interlock of the type “dovetail” after shot-peening strengthening is examined on the example of the low pressure compressor disc. Calculations and low-cycle fatigue tests of the samples and disks performed on the test stand “UIR-3” verified the effectiveness of the surface plastic deformation strengthening in the stress concentration zone.


About the authors

A. M. Porter

NPO ”Saturn” Corporation

Author for correspondence.
Email: alporter@rambler.ru

Russian Federation

сandidate of science
Head of "Engineering department of analysis and service life management"

S. A. Bukaty

Rybinsk state aviation technological academy

Email: bukaty_sa@mail.ru

Russian Federation

doctor of Science, professor

D. P. Leshin

NPO ”Saturn” Corporation

Email: alporter@rambler.ru

Russian Federation

engineer

A. S. Bukaty

Yaroslavl state technical university

Email: bukaty@inbox.ru

Russian Federation

сandidate of science

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