Experimental and numerical research on the failure of railway vehicles coupling links
Abstract
Two modes of failure are analysed for coupling links, the mechanical connections that transmit traction forces between vehicles along the length of a train. Coupling links are designed to withstand the dynamic loads in normal operation but may break if applied loads exceed safe operating limits. Fractography of two failed links revealed that one had failed through brittle fracture, and one through ductile fracture. Metallography indicated that one sample was hardened and tempered with typical tempered martensite microstructure and the other was normalized with a ferrite-pearlite microstructure. A numerical model of a coupling link is developed and validated against experimental data. Results indicate that the failed links experienced loads above the permitted limit.
Keywords:
Railway vehicles / Coupling links / Fracture / Experimental analysis / Numerical investigationsSource:
Engineering Failure Analysis, 2021, 127Funding / projects:
DOI: 10.1016/j.engfailanal.2021.105497
ISSN: 1350-6307
WoS: 000684376400003
Scopus: 2-s2.0-85106891425
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Vuksic-Popovic, M. AU - Tanaskovic, J. AU - Glišić, Dragomir AU - Radović, Nenad AU - Franklin, F. J. PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4797 AB - Two modes of failure are analysed for coupling links, the mechanical connections that transmit traction forces between vehicles along the length of a train. Coupling links are designed to withstand the dynamic loads in normal operation but may break if applied loads exceed safe operating limits. Fractography of two failed links revealed that one had failed through brittle fracture, and one through ductile fracture. Metallography indicated that one sample was hardened and tempered with typical tempered martensite microstructure and the other was normalized with a ferrite-pearlite microstructure. A numerical model of a coupling link is developed and validated against experimental data. Results indicate that the failed links experienced loads above the permitted limit. T2 - Engineering Failure Analysis T1 - Experimental and numerical research on the failure of railway vehicles coupling links VL - 127 DO - 10.1016/j.engfailanal.2021.105497 ER -
@article{ author = "Vuksic-Popovic, M. and Tanaskovic, J. and Glišić, Dragomir and Radović, Nenad and Franklin, F. J.", year = "2021", abstract = "Two modes of failure are analysed for coupling links, the mechanical connections that transmit traction forces between vehicles along the length of a train. Coupling links are designed to withstand the dynamic loads in normal operation but may break if applied loads exceed safe operating limits. Fractography of two failed links revealed that one had failed through brittle fracture, and one through ductile fracture. Metallography indicated that one sample was hardened and tempered with typical tempered martensite microstructure and the other was normalized with a ferrite-pearlite microstructure. A numerical model of a coupling link is developed and validated against experimental data. Results indicate that the failed links experienced loads above the permitted limit.", journal = "Engineering Failure Analysis", title = "Experimental and numerical research on the failure of railway vehicles coupling links", volume = "127", doi = "10.1016/j.engfailanal.2021.105497" }
Vuksic-Popovic, M., Tanaskovic, J., Glišić, D., Radović, N.,& Franklin, F. J.. (2021). Experimental and numerical research on the failure of railway vehicles coupling links. in Engineering Failure Analysis, 127. https://doi.org/10.1016/j.engfailanal.2021.105497
Vuksic-Popovic M, Tanaskovic J, Glišić D, Radović N, Franklin FJ. Experimental and numerical research on the failure of railway vehicles coupling links. in Engineering Failure Analysis. 2021;127. doi:10.1016/j.engfailanal.2021.105497 .
Vuksic-Popovic, M., Tanaskovic, J., Glišić, Dragomir, Radović, Nenad, Franklin, F. J., "Experimental and numerical research on the failure of railway vehicles coupling links" in Engineering Failure Analysis, 127 (2021), https://doi.org/10.1016/j.engfailanal.2021.105497 . .