From its earliest days, railroad technology has been limited by an inadequate understanding of the mechanics of load transfer between wheel and rail. It is the purpose of this paper to indicate the major problems in this area, and to review the progress made to date in the solution thereof. Attention is focussed upon investigations of the stresses (normal pressure and tangential shear) on the contact patch, rather than upon studies of bending stresses in the rail. The physical basis of Hertz's widely used analysis is outlined, and the assumptions and limitations of that analysis are indicated. The need is shown for the development of solutions to important non-Hertzian problems such as: conformal contact (e.g. between worn wheels and track), contact of rough bodies, rolling friction, adhesion and creep.
A review of rail-wheel contact stress problems
Ueber die Probleme der Beruehrungsspannungen von Rad und Schiene
US Government Reports ; 1-55
1975
55 Seiten
Report
English
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