Simplified explicit finite element model for the impact of a wheel on a crossing – Validation and parameter study
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In: Tribology International, Vol. 111.2017, No. July, 18.03.2017, p. 254-264.
Research output: Contribution to journal › Article › Research › peer-review
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T1 - Simplified explicit finite element model for the impact of a wheel on a crossing – Validation and parameter study
AU - Wiedorn, Julian
AU - Daves, Werner
AU - Ossberger, Uwe
AU - Ossberger, Heinz
AU - Pletz, Martin
PY - 2017/3/18
Y1 - 2017/3/18
N2 - An explicit finite element (FE) model for the impact of a wheel on the crossing nose of a rigid crossing with simplified model geometry is introduced. It can calculate the dynamic forces as well as the elastic/plastic stress and strain fields in the crossing nose. The model is based on impact angles and rail head radii that are automatically extracted from measured wheel and crossing geometries. Results of this model with elastic material behaviour are compared to results of FE models with realistic crossing geometry and a scheme for checking the applicability of the simplified model is presented. The model thus provides a fast, automated and validated method to calculate dynamic forces and stress-based damage indicators for crossings.
AB - An explicit finite element (FE) model for the impact of a wheel on the crossing nose of a rigid crossing with simplified model geometry is introduced. It can calculate the dynamic forces as well as the elastic/plastic stress and strain fields in the crossing nose. The model is based on impact angles and rail head radii that are automatically extracted from measured wheel and crossing geometries. Results of this model with elastic material behaviour are compared to results of FE models with realistic crossing geometry and a scheme for checking the applicability of the simplified model is presented. The model thus provides a fast, automated and validated method to calculate dynamic forces and stress-based damage indicators for crossings.
UR - http://www.scopus.com/inward/record.url?scp=85015622453&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2017.03.023
DO - 10.1016/j.triboint.2017.03.023
M3 - Article
AN - SCOPUS:85015622453
VL - 111.2017
SP - 254
EP - 264
JO - Tribology International
JF - Tribology International
SN - 0301-679X
IS - July
ER -
