Effects of thermal load on wheel–rail contacts: A review

Srivastava, Jay Prakash; Sarkar, Prabir; Ranjan, Vinayak

doi:10.1080/01495739.2016.1216060

Cited by 16 publications

(9 citation statements)

References 183 publications

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“…A review of literature by the authors indicates that different methodologies can be adopted to solve this equation. 21 The approach of Ertz and Knothe for temperature estimation arising from pressure distribution on smooth surfaces is considered in this study and discussed here briefly. 10 The model follows a modified heat transfer relation given by Carslaw and Jaeger.…”

Section: Numerical Modelingmentioning

confidence: 99%

“…The nature and distribution of the evolved heat and the temperature fields at the interface are to satisfy thermodynamic equilibrium. For this, a heat partition factor, suggested previously, 21 is introduced to maintain the continuity of temperature and conservation of heat fluxes between the wheel and rail surfaces. In the present model, a constant heat partition factor ( ε ) is taken as 0.5.…”

Section: Heat Flux Calculationmentioning

confidence: 99%

“…The mathematical formulation with minor modifications is used to date to tackle contact (wheel-rail) problems. [17][18][19][20] A detailed review in this respect was provided by Srivastava et al 21 Tanvir approximated a fast moving heat source as an instantaneous static source and estimated the rise in temperature due to wheel slip on rail using the Laplace transform method. 6 Knothe and Liebelt analyzed contact temperatures for components in relative sliding motion combining Laplace transforms and Green's function methods.…”

Section: Introductionmentioning

confidence: 99%

“…The mathematical formulation with minor modifications is used to date to tackle contact (wheel–rail) problems. 17–20 A detailed review in this respect was provided by Srivastava et al 21…”

Section: Introductionmentioning

confidence: 99%

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A numerical study on effects of friction-induced thermal load for rail under varied wheel slip conditions

Srivastava¹,

Sarkar

Kiran

et al. 2018

SIMULATION

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A finite element-based simulation was carried out to investigate the effects of friction-induced thermal load on rail under varied wheel slip conditions. The surface temperature rise from six different percentage slips (1%, 1.5%, 2%, 5%, 8.5%, and 10%) at the contact interface was examined for eight-wheel pass. The residual stresses and accumulated plastic strains evolved by the effect of localized temperature rise are estimated. Analytical formulation for conduction mode of heat transfer at the contact patch is used to estimate the temperature distribution. The interaction of thermal-elasticplastic field conditions is obtained by a proposed simulation model. This is implemented in commercial finite element software ANSYS 14.0. In order to capture the steep thermal gradient beneath the contact surface, refined mesh is used in the upper layers up to a depth of 2 mm of the simulation domain. For better manifestation of thermally affected material layers, a temperature dependent bilinear-kinematic hardening material condition is applied. Results indicate the maximum temperature rise at about 0.6a from the trailing end in the contact ellipse of semi-major axis a. At higher slippage conditions the initial pearlitic rail steel gets converted to martensite which is often observed on rail surface as white etching layer known to be associated with rolling contact fatigue. The study reveals the mechanisms of thermally induced defects observable on rail surface. The outcomes, in addition, can provide useful information for the development of thermo-mechanically superior rail steels.

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Section: Numerical Modelingmentioning

confidence: 99%

Section: Heat Flux Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A numerical study on effects of friction-induced thermal load for rail under varied wheel slip conditions

Srivastava¹,

Sarkar

Kiran

et al. 2018

SIMULATION

Self Cite

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show abstract

“…These works have been fundamental to many researchers in this field till now. A survey on sliding surface temperature studies in chronological order has been presented in [13].…”

Section: Introductionmentioning

confidence: 99%

Analytical Formulation for Temperature Evolution in Flat Wheel-Rail Sliding Surfaces

Otorabad

Tehrani

Younesian

et al. 2018

Mathematical Problems in Engineering

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Studying the temperature evolution of the thermally affected zone (TAZ) of sliding surfaces is crucial because of its influence on microstructural evolution, wear, and fatigue. Due to the complexity of thermal analysis of sliding bodies, relationships that predict their surface temperature evolution are very helpful because they can be used as time-dependent boundary conditions; this makes the thermal analysis of sliding bodies independent. In this paper, by assuming thermal contact conductance (TCC) at the sliding common surface, the differential equation governing the thermal analysis of the wheel-rail sliding is solved throughout a wheel flat. The temperature evolution of wheel and rail surfaces and the heat partitioning factor are among the main results. Finally, the equations obtained for wheel and rail surface temperatures are applied to a freight wagon and a passenger car as two real cases. The results are discussed and compared to existing data in the literature and a solid agreement is achieved.

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Development of a heating system and the effect of temperature in the twin-disc test

Ewald,

Rocha,

Fonseca

et al. 2023

J Braz. Soc. Mech. Sci. Eng.

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Effects of thermal load on wheel–rail contacts: A review

Cited by 16 publications

References 183 publications

A numerical study on effects of friction-induced thermal load for rail under varied wheel slip conditions

A numerical study on effects of friction-induced thermal load for rail under varied wheel slip conditions

Analytical Formulation for Temperature Evolution in Flat Wheel-Rail Sliding Surfaces

Development of a heating system and the effect of temperature in the twin-disc test

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