Example 7.4: Plot the variation of following effective compliance terms against the fibre volume fractions for both Voigt and Reuss approximation..

Solution: The plots of   are shown in Figure 7.12 and plots of  are shown in Figure 7.13. The Voigt approximation gives lower bound and Reuss approximation gives upper bound for   terms. Further, for terms   Voigt approximation gives upper bound and Reuss approximation gives lower bound.