Thermomechanical analysis of the wheel-rail contact using a coupled modelling procedure

Meysam Naeimi; Shaoguang Li; Zili Li; Jun Wu; Roumen H. Petrov; Jilt Sietsma; Rolf Dollevoet

doi:10.1016/j.triboint.2017.09.010

Thermomechanical analysis of the wheel-rail contact using a coupled modelling procedure

Meysam Naeimi, Shaoguang Li, Zili Li^*, Jun Wu, Roumen H. Petrov, Jilt Sietsma, Rolf Dollevoet

^*Corresponding author for this work

Railway Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

This research presents a coupled thermomechanical modelling procedure for the wheel-rail contact problem and computes the flash-temperature and stress-strain responses when thermal effects are present. A three-dimensional elasto-plastic finite element model was built considering the wheel-track interaction. When the wheel is running on rail, frictional energy is generated and converted into heat. To evaluate the contribution of thermal effects and plasticity, five different material models were studied among them TEPS was nonlinear and temperature-dependent including thermal softening. Discussions were made on the effect of solution type and material type. The rail temperature, calculated for a critical creepage case, confirmed the potential of martensitic phase transformation. Thermal effects were also important at lower creepages, where a synchronization effect causes earlier damage.

Original language	English
Pages (from-to)	250-260
Journal	Tribology International
Volume	117
DOIs	https://doi.org/10.1016/j.triboint.2017.09.010
Publication status	Published - 2018

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Finite element
Temperature
Thermal effects
Thermomechanical coupling
Wheel-rail contact

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10.1016/j.triboint.2017.09.010

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title = "Thermomechanical analysis of the wheel-rail contact using a coupled modelling procedure",

abstract = "This research presents a coupled thermomechanical modelling procedure for the wheel-rail contact problem and computes the flash-temperature and stress-strain responses when thermal effects are present. A three-dimensional elasto-plastic finite element model was built considering the wheel-track interaction. When the wheel is running on rail, frictional energy is generated and converted into heat. To evaluate the contribution of thermal effects and plasticity, five different material models were studied among them TEPS was nonlinear and temperature-dependent including thermal softening. Discussions were made on the effect of solution type and material type. The rail temperature, calculated for a critical creepage case, confirmed the potential of martensitic phase transformation. Thermal effects were also important at lower creepages, where a synchronization effect causes earlier damage.",

keywords = "Finite element, Temperature, Thermal effects, Thermomechanical coupling, Wheel-rail contact",

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AU - Naeimi, Meysam

AU - Li, Shaoguang

AU - Li, Zili

AU - Wu, Jun

AU - Petrov, Roumen H.

AU - Sietsma, Jilt

AU - Dollevoet, Rolf

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2018

Y1 - 2018

N2 - This research presents a coupled thermomechanical modelling procedure for the wheel-rail contact problem and computes the flash-temperature and stress-strain responses when thermal effects are present. A three-dimensional elasto-plastic finite element model was built considering the wheel-track interaction. When the wheel is running on rail, frictional energy is generated and converted into heat. To evaluate the contribution of thermal effects and plasticity, five different material models were studied among them TEPS was nonlinear and temperature-dependent including thermal softening. Discussions were made on the effect of solution type and material type. The rail temperature, calculated for a critical creepage case, confirmed the potential of martensitic phase transformation. Thermal effects were also important at lower creepages, where a synchronization effect causes earlier damage.

AB - This research presents a coupled thermomechanical modelling procedure for the wheel-rail contact problem and computes the flash-temperature and stress-strain responses when thermal effects are present. A three-dimensional elasto-plastic finite element model was built considering the wheel-track interaction. When the wheel is running on rail, frictional energy is generated and converted into heat. To evaluate the contribution of thermal effects and plasticity, five different material models were studied among them TEPS was nonlinear and temperature-dependent including thermal softening. Discussions were made on the effect of solution type and material type. The rail temperature, calculated for a critical creepage case, confirmed the potential of martensitic phase transformation. Thermal effects were also important at lower creepages, where a synchronization effect causes earlier damage.

KW - Finite element

KW - Temperature

KW - Thermal effects

KW - Thermomechanical coupling

KW - Wheel-rail contact

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DO - 10.1016/j.triboint.2017.09.010

M3 - Article

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SN - 0301-679X

VL - 117

SP - 250

EP - 260

JO - Tribology International

JF - Tribology International

ER -

Thermomechanical analysis of the wheel-rail contact using a coupled modelling procedure

Abstract

Bibliographical note

Keywords

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