Vg. Oancea et Ta. Laursen, A FINITE-ELEMENT FORMULATION OF THERMOMECHANICAL RATE-DEPENDENT FRICTIONAL SLIDING, International journal for numerical methods in engineering, 40(23), 1997, pp. 4275-4311
In this work, a combined theoretical and numerical approach is taken t
o consider the dynamic behaviour and the thermomechanical interactions
of systems in which friction has an important role. Emphasis is place
d on the proper numerical description of fully coupled thermomechanica
l response on frictional interfaces. From a theoretical standpoint, th
e first and second laws of thermodynamics are carefully formulated in
the context of large deformations, giving rise to a numerical descript
ion of contact interaction that is consistent with these laws. physica
l observations encompassed by the proposed interface description inclu
de thermal softening of frictional response, rate dependence, pressure
dependent heat conduction across the interface, and heat sinks on the
interfaces created by trapped wear debris. The finite element impleme
ntation of the framework is discussed and demonstrated, with numerical
examples successfully describing such phenomena as fading braking tor
que in automobiles and the observed temperature and friction evolution
at the interface between a gun barrel and a projectile passing throug
h it. (C) 1997 John Wiley & Sons, Ltd.