19--CAPSTAN FRICTION FOR POLYMER MONOFILAMENTS WITH RIGIDITY.

It has been shown that the conventional analysis of the capstan-friction behaviour of textile materials is innaccurate for two reasons: firstly, because it ignores the fact that such materials do not as a rule obey Amontons's Law, and. secondly, because the effect of the rigidity of the body passing round the capstan has been neglected. These effects have been analysed separately in a series of papers, but in this paper an attempt is made to take both effects into account. To do this it is necessary to obtain the relationship between the friction constants for localized- and distributed-force systems. This is done, and the resulting equations are shown to give predictions that are in agreement with experimental findings. [ABSTRACT FROM AUTHOR]