A finite element analysis with the implementation of an advanced cyclic plasticity theory was conducted to study the elastic-plastic deformation under the nonsteady state rolling contact between a wheel and a rail. The consideration of nonsteady state rolling contact was restricted to a harmonic variation of the wheel-rail normal contact force. The normal contact pressure was idealized as the Hertzian distribution, and the tangential force presented by Carter was used. Detailed rolling contact stresses and strains were obtained for repeated rolling contact. The harmonic variation of the normal (vertical) contact force results in a wavy rolling contact surface profile. The results can help understand the influence of plastic deformation on the rail corrugation initiation and growth. The creepage or stick-slip condition greatly influences the residual stresses and strains. While the residual strains and surface displacements increased at a reduced rate with increasing rolling passes, the residual stresses stabilize after a limited number of rolling passes. The residual stresses and strains near the wave trough of the residual wavy deformation are higher than those near the wave crest.
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October 2005
Research Papers
Elastic-Plastic Finite Element Analysis of Nonsteady State Partial Slip Wheel-Rail Rolling Contact
Zefeng Wen,
Zefeng Wen
State Key Laboratory of Traction Power,
Southwest Jiaotong University
, Chengdu 610031, China
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Xuesong Jin,
Xuesong Jin
State Key Laboratory of Traction Power,
e-mail: xsjin@home.swjtu.edu.cn
Southwest Jiaotong University
, Chengdu 610031, China
Search for other works by this author on:
Yanyao Jiang
Yanyao Jiang
Department of Mechanical Engineering (312),
University of Nevada
, Reno, NV 89557
Search for other works by this author on:
Zefeng Wen
State Key Laboratory of Traction Power,
Southwest Jiaotong University
, Chengdu 610031, China
Xuesong Jin
State Key Laboratory of Traction Power,
Southwest Jiaotong University
, Chengdu 610031, Chinae-mail: xsjin@home.swjtu.edu.cn
Yanyao Jiang
Department of Mechanical Engineering (312),
University of Nevada
, Reno, NV 89557J. Tribol. Oct 2005, 127(4): 713-721 (9 pages)
Published Online: June 21, 2005
Article history
Received:
March 11, 2005
Revised:
June 21, 2005
Citation
Wen, Z., Jin, X., and Jiang, Y. (June 21, 2005). "Elastic-Plastic Finite Element Analysis of Nonsteady State Partial Slip Wheel-Rail Rolling Contact." ASME. J. Tribol. October 2005; 127(4): 713–721. https://doi.org/10.1115/1.2033898
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