This paper describes the influence of corrosion on stress concentration factor and crack initiation at shaft flange transition section. The case study of hydraulic turbine shaft failure is used as the basis for this research. The quantification of the stress concentrators was accomplished by the usage of Theory of critical distances (TCD) in the prediction of high-cycle fatigue behavior in machine parts and systems. The stresses obtained by Finite Element Analysis, was used as an entry values for application of Theory of critical distances. The TCD represents a major extension of linear elastic fracture mechanics, allowing it to be used for short cracks as well as for stress concentrations of arbitrary geometry. Presented methodology is particular valid for machine parts of non-standard dimensions. The significance of results presented in this paper is that TCD and developed methodology can be used in preventing failures in power industry.
Keywords:
turbine shaft / theory of critical distances / fracture / fatigue
Source:
Machine Design, 2012, 4, 4, 231-236
Publisher:
Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
TY - JOUR
AU - Momčilović, Dejan
AU - Mitrović, Radivoje
AU - Atanasovska, Ivana
AU - Vuherer, Tomaž
PY - 2012
UR - http://rims.institutims.rs/handle/123456789/186
AB - This paper describes the influence of corrosion on stress concentration factor and crack initiation at shaft flange transition section. The case study of hydraulic turbine shaft failure is used as the basis for this research. The quantification of the stress concentrators was accomplished by the usage of Theory of critical distances (TCD) in the prediction of high-cycle fatigue behavior in machine parts and systems. The stresses obtained by Finite Element Analysis, was used as an entry values for application of Theory of critical distances. The TCD represents a major extension of linear elastic fracture mechanics, allowing it to be used for short cracks as well as for stress concentrations of arbitrary geometry. Presented methodology is particular valid for machine parts of non-standard dimensions. The significance of results presented in this paper is that TCD and developed methodology can be used in preventing failures in power industry.
PB - Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
T2 - Machine Design
T1 - Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life
EP - 236
IS - 4
SP - 231
VL - 4
UR - https://hdl.handle.net/21.15107/rcub_rims_186
ER -
@article{
author = "Momčilović, Dejan and Mitrović, Radivoje and Atanasovska, Ivana and Vuherer, Tomaž",
year = "2012",
abstract = "This paper describes the influence of corrosion on stress concentration factor and crack initiation at shaft flange transition section. The case study of hydraulic turbine shaft failure is used as the basis for this research. The quantification of the stress concentrators was accomplished by the usage of Theory of critical distances (TCD) in the prediction of high-cycle fatigue behavior in machine parts and systems. The stresses obtained by Finite Element Analysis, was used as an entry values for application of Theory of critical distances. The TCD represents a major extension of linear elastic fracture mechanics, allowing it to be used for short cracks as well as for stress concentrations of arbitrary geometry. Presented methodology is particular valid for machine parts of non-standard dimensions. The significance of results presented in this paper is that TCD and developed methodology can be used in preventing failures in power industry.",
publisher = "Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad",
journal = "Machine Design",
title = "Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life",
pages = "236-231",
number = "4",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_rims_186"
}
Momčilović, D., Mitrović, R., Atanasovska, I.,& Vuherer, T.. (2012). Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life. in Machine Design
Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad., 4(4), 231-236.
https://hdl.handle.net/21.15107/rcub_rims_186
Momčilović D, Mitrović R, Atanasovska I, Vuherer T. Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life. in Machine Design. 2012;4(4):231-236.
https://hdl.handle.net/21.15107/rcub_rims_186 .
Momčilović, Dejan, Mitrović, Radivoje, Atanasovska, Ivana, Vuherer, Tomaž, "Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life" in Machine Design, 4, no. 4 (2012):231-236,
https://hdl.handle.net/21.15107/rcub_rims_186 .
