Estimation of residual stress distribution in railroad wheels

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Estimation of residual stress distribution in railroad wheels

Sura, Venkata S. / Mahadevan, Sankaran

Residual stresses in railroad wheel rims significantly affect the wheel failure life; therefore, it is important to consider residual stresses for wheel failure analysis. In this paper, an advanced computational methodology is developed to estimate residual stresses developed during both the manufacturing process and under service conditions. To estimate the residual stresses in the wheel, three-dimensional decoupled thermalstructural analyses are performed. To simulate the manufacturing process, thermal analysis is performed with convection boundary conditions on the wheel surfaces. The temperature distributions obtained from this thermal analysis are input as loads for structural analysis. The results represent as-manufactured residual stresses. To simulate the thermal brake loading under service conditions, thermal analysis is performed using a heat flux boundary condition on the tread surface. Structural analysis is performed, including the estimated as manufactured residual stress as initial stress, and using the temperature distributions obtained from thermal analysis of the on-tread braking. The resultant stresses represent the complex combination of residual stresses developed during both the manufacturing process and on-tread braking. The computed results are compared with the experimental data obtained at TTCI and the values reported in the literature.

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Title :

Estimation of residual stress distribution in railroad wheels

Additional title:

Bewertung der Restspannungsverteilung in Eisenbahnrädern

Contributors:

Sura, Venkata S. (author) / Mahadevan, Sankaran (author)

Published in:

Mechancial and Civil Engineering Papers, Electrical Engineering Papers, JRC, ASME/IEEE/ASCE Joint Rail Conference, 2009 ; 31-39

Publication date :

2009

Size :

9 Seiten, 10 Bilder, 17 Quellen

ISBN :

978-0-7918-4338-3

DOI :

https://doi.org/10.1115/JRC2009-63011

Type of media :

Conference paper

Type of material :

Language :

English

Keywords :

Eigenspannung , Eisenbahnrad , Fertigungsprozess , Rechnerprogramm , Spannungsverteilung (mechanisch) , Stahl (nach Anwendung) , Temperaturverteilung

Sura, V.S. / Mahadevan, S. / American Society of Mechanical Engineers; Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2009

Ultrasonic measurements of residual stress in railroad wheels

Schramm, R.E. / Clark, A.V. / Mitrakovic, D.V. et al. | Tema Archive | 1991

Safety assessment of railroad wheels by residual stress measurements

Schramm, Raymond E. / Clark, Al V. / Szelazek, Jacek | SPIE | 1995

Ultrasonic measurement of residual stress in cast steel railroad wheels

Schramm, R.E. / Clark, A. van / Szelazek, J. | Tema Archive | 1994

Estimation of residual stresses in railroad commuter car wheels following manufacture

Gordon, J. / Perlman, A.B. | Tema Archive | 1998

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