Int.J.Mech.Sci. 38, 1219-1229, 1996


ON THE FRICTIONAL BEHAVIOUR OF THERMALLY LOADED
BEAMS RESTING ON A PLANE

L.V. Nikitin¹, F.D. Fischer², E.R. Oberaigner², F.G. Rammerstorfer³, M. Seitzberger³ and R.I. Mogilevsky¹

¹Russian Academy of Science,
Lomonosov Moscow State University, Moscow, Russia
²Institute of Mechanics,
University for Mining and Metallurgy, Leoben, Austria
³Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria


Abstract - The problem of an elastic beam resting on a frictional surface and loaded by a uniform temperature moment is treated analytically and numerically. The introduction of proper non-dimensional parameters identifies the deformation pattern which varies with monotonically increasing temperature load in a self-similar manner. This fact reduces the complexity of the mathematical system considerably and offers the derivation of the solution on an analytical basis. Several approaches are described, discussed and compared against each other. This problem is typical for a broader class of problems involving Coulomb friction in beam deformation. In addition to the fact that it is interesting from the structural as well as from the mathematical points of view, it is of practical importance, for example in the simulation of the cooling process of hot rolled railway rails.


(hjb,960723)