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Traction in transverse direction based on spin and side-slip was determined with a disk-on-roller machine. The measurements for di-octyl phthalate showed that the traction based on only spin was due to the elasticity of an EHL oil film from the viewpoint of rheological behaviour. Then, the influence of some parameters on the traction was examined for the synthetic naphthenes. The traction increased...
The rheological properties (flow curves and the viscoelastic behavior) of the dispersions prepared from plas-ma-processed Al2O3 powders and epoxy wax were investigated on wide ranges of shear rates (from 0.018 to 1350s-1) and frequencies (from 0.063 to 157s-1). Oleic acid and Hypermer LP1 was chosen as dispersants for preparation of the dispersions. It is stated that, at the concentration f ? 15 vol...
A non-affine visco-elasto-plastic constitutive equation with yield stress is proposed to simulate the response of magnetorheological fluids to driving forces. The equation yields realistic flow patterns in the pressure gradient driven fully developed tube flow which combine the effects of viscoelasticity and yield stress. The interplay of yield stress and viscoelasticity results in longitudinal velocity...
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