Email this article MULTI-CYCLIC FATIGUE OF MACHINES PARTS PREDICTION AFTER SUPERFICIAL PLASTIC DEFORMING
- Authors: Pavlov V.F.1, Vakulyuk V.S.1, Sazanov V.P.1, Semenova OY.1, Churikov D.S.1
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Affiliations:
- Samara National Research University (Samara University)
- Issue: Vol 8, No 2 (2022)
- Pages: 27-35
- Section: Articles
- URL: https://dynvibro.ru/dynvibro/article/view/11036
- DOI: https://doi.org/10.18287/2409-4579-2022-8-2-27-35
- ID: 11036
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Abstract
The evaluation of compressive residual stresses caused by pneumo- shot blasting and rolling influence on the endurance limit of specimens made of steel 20 of 25 mm diameter with circular cuts of a semicircular profile of various radiuses under bending has been examined. It’s been stated that it’s more reasonable to use the average integral residual stresses criterion for an endurance limit prediction of surface hardened specimens made of steel 20 with concentrators like cuts and pressurized hub. The criterion of axial residual stresses on a dangerous section surface of specimens with stress concentrators can’t be used because the corresponding coefficient taking into account the influence of this criterion on an endurance limit has the essential dispersion. It’s been shown that in order to maintain the hardening effect on cut’s depth rising one should raise the layer with compressive residual stresses depth of a smooth specimen.
About the authors
V. F. Pavlov
Samara National Research University (Samara University)
Author for correspondence.
Email: pavlov.vf@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation
V. S. Vakulyuk
Samara National Research University (Samara University)
Email: pavlov.vf@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation
V. P. Sazanov
Samara National Research University (Samara University)
Email: pavlov.vf@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation
O Y. Semenova
Samara National Research University (Samara University)
Email: pavlov.vf@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation
D. S. Churikov
Samara National Research University (Samara University)
Email: pavlov.vf@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation
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