Shuler and Advani [28] considered unidirectional fibre reinforced
composites as a homogeneous continuum medium with an effective
bulk transverse shearing viscosity g. When the flow occurs
solely in the transverse fibre direction, since the inextensible fibres
are considered to restrict flow in their direction, the flow can reasonably
be considered two dimensional. Because the platen gap is
usually an order of magnitude smaller than the sample width,
lubrication assumption holds. Under these assumptions, the Stokes
equation reduces to one single scalar equation that can easily be
solved numerically to predict the sample height evolution as a
function of time