A three-dimensional finite element solution of frictional wheel–rail rolling contact in elasto-plasticity

Zhao, Xin; Li, Zili

doi:10.1177/1350650114543717

Cited by 53 publications

(40 citation statements)

References 37 publications

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“…The damage mechanism is assumed to be limited to wear because the focus of this paper is on the conditions that may lead to the consistent initiation and growth of corrugation. To account for plasticity, the method of [28] can be readily incorporated, which will be our future research focus.…”

Section: Introductionmentioning

confidence: 99%

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Li¹,

Li²,

Núñez³

et al. 2017

Applied Sciences

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Abstract:A three-dimensional (3D) finite element (FE) dynamic frictional rolling contact model is presented for the study of short pitch corrugation that considers direct and instantaneous coupling between the contact mechanics and the structural dynamics in a vehicle-track system. In this study, we examine the system responses in terms of vibration modes, contact forces and the resulting wear with smooth rail and corrugated rail with progressively increasing amplitude to infer the conditions for consistent corrugation initiation and growth. Wear is assumed to be the damage mechanism, and short pitch corrugation is modeled using wavelengths from field observations of a Dutch railway. The contribution of this paper is a global perspective of the consistency conditions that govern the evolution of short pitch corrugation. The main insights are as follows: (1) the longitudinal vibration modes are probably dominant for short pitch corrugation initiation; (2) during short pitch corrugation evolution, the interaction and consistency between longitudinal and vertical modes should determine the development of short pitch corrugation, and once a certain severity is reached, vertical modes become dominant; and (3) in the case simulated in this paper, corrugation does not grow probably due to not only the different resulting main frequencies of the vertical and longitudinal contact forces, but also the inconsistency between the frequencies of the vertical and longitudinal vibration modes and the resulting wear. It is inferred that in the continuous process of initiation and growth of the corrugation, there should be a consistency between them, and this could be done by the control of certain track parameters.

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Section: Introductionmentioning

confidence: 99%

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Li¹,

Li²,

Núñez³

et al. 2017

Applied Sciences

Self Cite

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“…The material model for the comparative study is listed in Table 2. Zhao and Li [9] determined elastic-plastic material model in reference to literature [19,20]. The difference in the case 4 and 5 is material properties of the wheel part.…”

Section: Materials Properties Of the Assemblymentioning

confidence: 99%

“…One of the cases assumes elastic wheel material, while the other one is elastic-plastic material property for wheel. Table 2 Parameters of elastic-plastic material model [9,19,20] …”

Section: Materials Properties Of the Assemblymentioning

confidence: 99%

“…The material parameters (Young's modulus, Poisson's ratio) of the cases used by previous studies in linear elasticity are listed in Table 1, cases 1-3. Table 1 Material properties of the studied cases [9,11,12,18]; "EP" means elastic-plastic material model whose parameters are specified in Table 2 Young's modulus [GPa] Poisson ratio wheel rail Arslan and Kayabaşı [11] utilized a bilinear material model of the previous study [12]. Elastic material properties of the study is used in case 3.…”

Section: Materials Properties Of the Assemblymentioning

confidence: 99%

“…The 3-D finite element model was set up to simulate rolling contact. In the model, equal values of material parameters were applied to the components by the authors of [9]. Zhao et al developed the 3D explicit finite element model in order to observe rolling contact with the contaminated rail.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of the wheel and rail frictionless normal contact considering material parameters

Özdemir¹,

Voltr²

2016

J. Appl. Math. Comput. Mech.

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Abstract. Wheel and rail contact is a transport application of contact mechanics. Outputs of the contact interface are investigated in various perspectives. Examinations of the inputs are generally ignored, but there are assumptions that include material parameters. This study examines the material inputs and assumptions of the previous wheel and rail contact analyses. This study covers the comparison of different elastic material parameters and the effects of the elastic wheel assumption.

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The mechanism of decrease in bearing capacity and performance evaluation of the yielding bolt in coal mine

Tai

Huang

Xia

et al. 2020

Energy Science & Engineering

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With the increase of the coal mining depth, the surrounding rock shows characteristics of high stress and large deformation. However, the traditional bolt could not adapt to this surrounding rock environment and become invalid due to low elongation. In order to solve the problem, the new type of yielding bolt has been designed. It could release the deformation energy of the surrounding rock through its yielding pipe. However, few studies have been reported on the mechanism in bearing capacity decrease of the yielding pipe. Furthermore, the evaluation of the yielding bolt was not fully understood. Under such a background, a numerical model of the yielding model was established. According to the numerical simulation, the mechanism of the decrease in the bearing capacity of the yielding bolt is that the buckling occurs at different positions of the yielding pipe, making the material stiffness matrix turn negative, and the bearing capacity decreases significantly. Also, the performance of the yielding bolt could be evaluated from the use efficiency of the yielding pipe, the plastic strain characteristics of the components of the yielding bolt, and the energy absorption law. The evaluation results indicated that: (a) the deviation of the yielding pipe's Mises stresses was within the range of 1.0%‐4.0%. The stresses were distributed evenly, and the material use efficiency was high; (b) only the yielding pipe occurred the plastic failure during the yielding process, and other components were at the elastic stages. After the yielding, the yielding bolt was still effective for support. (c) The yielding pipe could absorb energy smoothly, which is helpful for the stability of the yielding bolt.

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A three-dimensional finite element solution of frictional wheel–rail rolling contact in elasto-plasticity

Cited by 53 publications

References 37 publications

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Analysis of the wheel and rail frictionless normal contact considering material parameters

The mechanism of decrease in bearing capacity and performance evaluation of the yielding bolt in coal mine

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