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Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft

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Authors
Mitrović, Radivoje
Momčilović, Dejan
Atanasovska, Ivana
Article (Published version)
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Abstract
Energy efficiency is a key issue worldwide, and not confined solely to the realm of engineers. Past failures of mechanical power system components must be examined carefully in order to minimise future occurrences and increase energy efficiencies. Improved design procedures have been highly sought by engineers and researchers over the past few decades. The latest verified method with strong application potential within the power industry is that of the Theory of Critical Distances (TCD). TCD is not one method, but a group of methods that have a common feature; the use of a characteristic material length parameter, the critical distance L, for calculating the influence of notch-like stress raisers under static and fatigue loading. A case study from a hydro power plant turbine shaft was chosen to illustrate the development of this methodology. The paper illustrates the application of TCD to the fatigue life assessment of a turbine shaft with stress concentrations due to pitting corrosion....

Keywords:
Shaft / Pitting / Hydro turbine / Fatigue / Crack initiation / Corrosion
Source:
Advanced Materials Research, 2013, 633, 186-196
Publisher:
  • Trans Tech Publications Ltd

DOI: 10.4028/www.scientific.net/AMR.633.186

ISSN: 1022-6680

Scopus: 2-s2.0-84873020532
[ Google Scholar ]
3
URI
http://rims.institutims.rs/handle/123456789/225
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
Institut za ispitivanje materijala
TY  - JOUR
AU  - Mitrović, Radivoje
AU  - Momčilović, Dejan
AU  - Atanasovska, Ivana
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/225
AB  - Energy efficiency is a key issue worldwide, and not confined solely to the realm of engineers. Past failures of mechanical power system components must be examined carefully in order to minimise future occurrences and increase energy efficiencies. Improved design procedures have been highly sought by engineers and researchers over the past few decades. The latest verified method with strong application potential within the power industry is that of the Theory of Critical Distances (TCD). TCD is not one method, but a group of methods that have a common feature; the use of a characteristic material length parameter, the critical distance L, for calculating the influence of notch-like stress raisers under static and fatigue loading. A case study from a hydro power plant turbine shaft was chosen to illustrate the development of this methodology. The paper illustrates the application of TCD to the fatigue life assessment of a turbine shaft with stress concentrations due to pitting corrosion.
PB  - Trans Tech Publications Ltd
T2  - Advanced Materials Research
T1  - Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft
EP  - 196
SP  - 186
VL  - 633
DO  - 10.4028/www.scientific.net/AMR.633.186
UR  - conv_991
ER  - 
@article{
author = "Mitrović, Radivoje and Momčilović, Dejan and Atanasovska, Ivana",
year = "2013",
abstract = "Energy efficiency is a key issue worldwide, and not confined solely to the realm of engineers. Past failures of mechanical power system components must be examined carefully in order to minimise future occurrences and increase energy efficiencies. Improved design procedures have been highly sought by engineers and researchers over the past few decades. The latest verified method with strong application potential within the power industry is that of the Theory of Critical Distances (TCD). TCD is not one method, but a group of methods that have a common feature; the use of a characteristic material length parameter, the critical distance L, for calculating the influence of notch-like stress raisers under static and fatigue loading. A case study from a hydro power plant turbine shaft was chosen to illustrate the development of this methodology. The paper illustrates the application of TCD to the fatigue life assessment of a turbine shaft with stress concentrations due to pitting corrosion.",
publisher = "Trans Tech Publications Ltd",
journal = "Advanced Materials Research",
title = "Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft",
pages = "196-186",
volume = "633",
doi = "10.4028/www.scientific.net/AMR.633.186",
url = "conv_991"
}
Mitrović, R., Momčilović, D.,& Atanasovska, I.. (2013). Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft. in Advanced Materials Research
Trans Tech Publications Ltd., 633, 186-196.
https://doi.org/10.4028/www.scientific.net/AMR.633.186
conv_991
Mitrović R, Momčilović D, Atanasovska I. Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft. in Advanced Materials Research. 2013;633:186-196.
doi:10.4028/www.scientific.net/AMR.633.186
conv_991 .
Mitrović, Radivoje, Momčilović, Dejan, Atanasovska, Ivana, "Assessment of the effect of pitting corrosion on fatigue crack initiation in hydro turbine shaft" in Advanced Materials Research, 633 (2013):186-196,
https://doi.org/10.4028/www.scientific.net/AMR.633.186 .,
conv_991 .

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