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Estimation of actual residual stresses due to braking and contact loading of rail vehicle wheels
M Holowinski,E S Bobrov +1 more
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TLDR
In this paper, a finite element formulation for shakedown stress analysis of rail vehicle wheels is presented, based on a hypothesis that the shakedown state is axisymmetric, which can be used to estimate shakedown stresses in wheels subjected to combined mechanical (wheel/rail contact) and thermal (temperature gradients and thermal stress due to braking) loads.Abstract:
A finite element formulation for shakedown stress analysis of rail vehicle wheels is presented, based on a hypothesis that the shakedown state is axisymmetric. The method can be used to estimate shakedown stresses in wheels subjected to combined mechanical (wheel/rail contact) and thermal (temperature gradients and thermal stress due to braking) loads. The formulation includes provisions for initial manufacturing stress, shifting contact locations, and temperature-dependent material properties. Validation results and demonstration example analysis of an actual wheel design are presented.read more
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Estimation of residual stresses in railroad commuter car wheels following manufacture
J Gordon,A B Perlman +1 more
TL;DR: In this paper, a finite element simulation is presented for the prediction of residual stresses resulting from the heat treatment of railroad commuter car wheels during manufacture, and the results of the studies presented in this paper are required to define the initial conditions for analyses of how service conditions may act to change the as-manufactured residual stress state.
Journal ArticleDOI
A study into crack growth in a railway wheel under thermal stop brake loading spectrum
TL;DR: In this paper, a method for solving thermal fatigue crack growth in the rail wheel under stop braking spectrum is presented, where a finite element model of the wheel is used for all braking applications.
Evaluation of service-induced residual stresses in railroad commuter car wheels
TL;DR: In this article, an analysis of the effects of service conditions on the distribution of residual stresses in railroad car wheels is presented, showing that contact stresses acting alone result in increased net rim hoop compression and thermal stresses due to frictional heating reverse the as-manufactured residual compressive state.
References
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Book
Finite element procedures in engineering analysis
Klaus-Jürgen Bathe,H. Saunders +1 more
TL;DR: Elements finis Reference Record created on 2004-09-07, modified on 2016-08-08.
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Thermal cracking in railroad vehicle wheels subjected to high performance stop braking
O. Orringer,D.E. Gray +1 more
TL;DR: In this article, the authors investigated the cause of thermal cracks observed in the wheels of certain electric multiple unit (EMU) locomotives in North American commuter rail service and found that the residual stress reversal was caused by thermal stresses during high performance stop braking.