This paper studies the rheological properties of a semi-dilute fiber suspension for short fiber reinforced composite materials processing. For industrial applications, the volume fraction of short fibers could be large for semi-dilute and concentrated fiber suspensions. Therefore, fiber-fiber interactions consisting of hydrodynamic interactions and direct mechanical contacts could affect fiber ...

The correlations between the intrinsic viscosity of fiber suspensions and 17 measures of fiber shape were inve­ stigated. The intrinsic viscosities of suspensions of fibers with various shapes and aspect ratios were determined numerically. The shapes studied include different degrees of fiber curvature, angular bends, helical shapes, randomly generated shapes, and others. The shape measure that...

The flow behavior of fiber suspensions has been studied extensively, especially in the limit of dilute concentrations and rigid fibers; at the other extreme, however, where the suspensions are concentrated and the fibers are highly flexible, much less is understood about the flow properties. We use a microfluidic method to produce uniform concentrated suspensions of high aspect ratio, flexible ...

SYNOPSIS This work reports a detailed study on the shear magnetorheology of suspensions of magnetic microfibers. The steady-state regime was investigated using a controlled-stress rheometer, for different concentrations of particles and under the presence of a broad range of applied magnetic fields (up to 512 kA m-1). The results were compared with those obtained for conventional magnetorheolog...

We numerically investigated the rheology of concentrated suspensions fibers by including hydrodynamic, noncontact conservative, and inter-fiber contact interactions. In this work, we provided first quantitative explanation origin yield stress, shear thinning, normal stress differences in fiber focusing on contributions.