This paper describes an investigation of ‘load–displacement’ and ‘displacement—time’ characteristics of frictional contacts of a ball between two parallel flats under low rates of tangential load application. Time history of ball displacement under sustained loads below gross slip is investigated. The tests showed that the frictional joint exhibited ‘creep’ behaviour at room temperatures under loads below the gross slip values which can be described by a Boltzmann model of viscoelasticity.
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