TY - JOUR
T1 - A simple model to estimate yield stress and variation of hardness in railheads
AU - Kourousis, Kyriakos I.
AU - Athukoralalage, Asitha
AU - De Pellegrin, Dennis
N1 - Publisher Copyright:
© 2017, © IMechE 2017.
PY - 2018/4/1
Y1 - 2018/4/1
N2 - This technical note presents a macroscopic model capable of estimating the variation of hardness and yield stress at different railhead distances (depths) from the running surface. Published data, including results reported in previous works by the authors, have been utilised to calibrate and test the validity of the model. From this preliminary investigation, it was found that the model can accurately predict the measured hardness and yield stress values. It was also found that the model can represent the variation profile exhibited in the examined railhead material. This model, subject to further validation, has the potential to be used in practical applications.
AB - This technical note presents a macroscopic model capable of estimating the variation of hardness and yield stress at different railhead distances (depths) from the running surface. Published data, including results reported in previous works by the authors, have been utilised to calibrate and test the validity of the model. From this preliminary investigation, it was found that the model can accurately predict the measured hardness and yield stress values. It was also found that the model can represent the variation profile exhibited in the examined railhead material. This model, subject to further validation, has the potential to be used in practical applications.
KW - hardness
KW - isotropic hardening
KW - macroscopic model
KW - Rail
KW - steel
KW - yield stress
UR - http://www.scopus.com/inward/record.url?scp=85045140212&partnerID=8YFLogxK
U2 - 10.1177/0954409717710557
DO - 10.1177/0954409717710557
M3 - Article
AN - SCOPUS:85045140212
SN - 0954-4097
VL - 232
SP - 1193
EP - 1196
JO - Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
JF - Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
IS - 4
ER -