The coupling system provides a mechanical connection between European railway vehicles. Screw couplings are designed as a safety device in railway vehicles with coupling links and screw as two main components intended to break. Failure of these components is necessary when the load between vehicles is exceeded, otherwise more significant draw gear elements will fracture. The analysis of train break cases shows that the failure of the links occurs only in an approx. 6% of cases. Therefore, the links taken from exploitation after more than 30 years in operation were tested to determine their mechanical characteristics. Tensile testing was performed according to the ISO 6892-1 standard with a continual force and a minimal and maximal test speed prescribed by ISO 6892-1. The values of mechanical characteristics of coupling links are substantially improved during production after heat treatment by hardening and tempering. However, test results of mechanical characteristics didn’t meet all p...rescribed limits for the minimum requirements according to UIC 826. The current regulations of mechanical characteristics were not in force in time of link production. Examination of the tested links showed a ductile fracture and the cross-sectional area shows the planar stress state.
TY - CONF
AU - Vukšić-Popović, Marija
AU - Tanasković, Jovan
AU - Momčilović, Dejan
AU - Lučanin, Vojkan
PY - 2021
UR - http://rims.institutims.rs/handle/123456789/476
AB - The coupling system provides a mechanical connection between European railway vehicles. Screw couplings are designed as a safety device in railway vehicles with coupling links and screw as two main components intended to break. Failure of these components is necessary when the load between vehicles is exceeded, otherwise more significant draw gear elements will fracture. The analysis of train break cases shows that the failure of the links occurs only in an approx. 6% of cases. Therefore, the links taken from exploitation after more than 30 years in operation were tested to determine their mechanical characteristics. Tensile testing was performed according to the ISO 6892-1 standard with a continual force and a minimal and maximal test speed prescribed by ISO 6892-1. The values of mechanical characteristics of coupling links are substantially improved during production after heat treatment by hardening and tempering. However, test results of mechanical characteristics didn’t meet all prescribed limits for the minimum requirements according to UIC 826. The current regulations of mechanical characteristics were not in force in time of link production. Examination of the tested links showed a ductile fracture and the cross-sectional area shows the planar stress state.
C3 - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2021, Zlatibor, Serbia
T1 - Experimental research of mechanical characteristics of railway vehicles safety coupling components
SP - 32
UR - https://hdl.handle.net/21.15107/rcub_rims_476
ER -
@conference{
author = "Vukšić-Popović, Marija and Tanasković, Jovan and Momčilović, Dejan and Lučanin, Vojkan",
year = "2021",
abstract = "The coupling system provides a mechanical connection between European railway vehicles. Screw couplings are designed as a safety device in railway vehicles with coupling links and screw as two main components intended to break. Failure of these components is necessary when the load between vehicles is exceeded, otherwise more significant draw gear elements will fracture. The analysis of train break cases shows that the failure of the links occurs only in an approx. 6% of cases. Therefore, the links taken from exploitation after more than 30 years in operation were tested to determine their mechanical characteristics. Tensile testing was performed according to the ISO 6892-1 standard with a continual force and a minimal and maximal test speed prescribed by ISO 6892-1. The values of mechanical characteristics of coupling links are substantially improved during production after heat treatment by hardening and tempering. However, test results of mechanical characteristics didn’t meet all prescribed limits for the minimum requirements according to UIC 826. The current regulations of mechanical characteristics were not in force in time of link production. Examination of the tested links showed a ductile fracture and the cross-sectional area shows the planar stress state.",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2021, Zlatibor, Serbia",
title = "Experimental research of mechanical characteristics of railway vehicles safety coupling components",
pages = "32",
url = "https://hdl.handle.net/21.15107/rcub_rims_476"
}
Vukšić-Popović, M., Tanasković, J., Momčilović, D.,& Lučanin, V.. (2021). Experimental research of mechanical characteristics of railway vehicles safety coupling components. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2021, Zlatibor, Serbia, 32.
https://hdl.handle.net/21.15107/rcub_rims_476
Vukšić-Popović M, Tanasković J, Momčilović D, Lučanin V. Experimental research of mechanical characteristics of railway vehicles safety coupling components. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2021, Zlatibor, Serbia. 2021;:32.
https://hdl.handle.net/21.15107/rcub_rims_476 .
Vukšić-Popović, Marija, Tanasković, Jovan, Momčilović, Dejan, Lučanin, Vojkan, "Experimental research of mechanical characteristics of railway vehicles safety coupling components" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2021, Zlatibor, Serbia (2021):32,
https://hdl.handle.net/21.15107/rcub_rims_476 .
