TY - JOUR

T1 - Applicability of the Hertz contact theory to rail-wheel contact problems

AU - Yan, Wen

AU - Fischer, Franz-Dieter

PY - 2000/5

Y1 - 2000/5

N2 - Rail-wheel contact problems have been analyzed by applying three-dimensional finite element models. Based on these models, the applicability of the Hertz contact theory (HCT) to rail-wheel contact problems is verified in the present paper. Beside a standard rail, also a crane rail and a switching component are considered in the verification. In the case of a contact between the standard rail UIC60 and the standard wheel UICORE, different transverse contact positions are analyzed. Numerically calculated distributions of the contact pressure for different types of rails with respect to different initial contact positions agree with the results from the HCT only if either the contact zone does not spread into a region of changed surface curvature or if plastification does not occur. Finally, the convective part of the dissipation power due to friction is calculated, which cannot be provided directly by the HCT.

AB - Rail-wheel contact problems have been analyzed by applying three-dimensional finite element models. Based on these models, the applicability of the Hertz contact theory (HCT) to rail-wheel contact problems is verified in the present paper. Beside a standard rail, also a crane rail and a switching component are considered in the verification. In the case of a contact between the standard rail UIC60 and the standard wheel UICORE, different transverse contact positions are analyzed. Numerically calculated distributions of the contact pressure for different types of rails with respect to different initial contact positions agree with the results from the HCT only if either the contact zone does not spread into a region of changed surface curvature or if plastification does not occur. Finally, the convective part of the dissipation power due to friction is calculated, which cannot be provided directly by the HCT.

KW - Elastic-plastic material

KW - Hertz contact theory

KW - Rail-wheel contact

UR - http://www.scopus.com/inward/record.url?scp=0000312887&partnerID=8YFLogxK

U2 - 10.1007/s004199900035

DO - 10.1007/s004199900035

M3 - Article

AN - SCOPUS:0000312887

VL - 70.2000

SP - 255

EP - 268

JO - Archive of applied mechanics

JF - Archive of applied mechanics

SN - 0939-1533

IS - 4

ER -