2.8.1 B and D for Steady Extension Consider three steady extensional flows: (a) uniaxial, (b) equal biaxial, and (c) planar. Determine components of the tensors B and D for each and for their invariants. 2.8.2 Stresses in Steady Extension Determine the normal stress differences in the three steady extensional flows of Exercise 2.8.1. (a) For a Power Law Fluid T=pI+mII2D(n1)/22D (note: m=0 and n=1 for a Newtonian fluid) (b) For a Bingham Plastic and=GBforIIr