Расчётно-экспериментальное исследование влияния упрочнения методом ППД на малоцикловую усталость деталей ГТД с концентраторами напряжений

Портер А. М.; A. M. Porter; Букатый С. А.; S. A. Bukaty; Лёшин Д. П.; D. P. Leshin; Букатый А. С.; A. S. Bukaty

doi:10.18287/2541-7533-2011-0-3-2(27)-40-46

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

Authors: Porter A.M.¹, Bukaty S.A.², Leshin D.P.¹, Bukaty A.S.³
Affiliations:
1. NPO ”Saturn” Corporation
2. Rybinsk state aviation technological academy
3. Yaroslavl state technical university
Issue: Vol 10, No 3-2 (2011): Special Issue
Pages: 40-46
Section: AIRCRAFT AND SPACE ROCKET ENGINEERING
URL: https://journals.ssau.ru/vestnik/article/view/6780
DOI: https://doi.org/10.18287/2541-7533-2011-0-3-2(27)-40-46
ID: 6780

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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.