Page 103 - Mechanics Analysis Composite Materials

88 Mechanics and analysis of composite materials

0 -Vf
0 0.2 0.4 0.6 0.8
Fig. 3.36. Dependence of the normalized transverse modulus on fiber volume fraction: (-) first-
order model, Eq. (3.78); (. ..... .) second-order model, Eq. (3.89); (- -- -) higher-order model (elasticity
solution) (Van Fo Fy, 1966); (- -- -) the upper bound; (*) experimental data.

Aa
E2 = - (3.84)
a
such that the effective (apparent) transverse modulus is calculated as

(3.85)

GI, 1%
10 -

8-

6-

4-

2-

0 0.2 0.4 0.6 0.8

Fig. 3.37. Dependence of the normalized in-plane shear modulus on fiber volume fraction: (-) first-
order model, Eq. (3.81); (. ' .....) second-order model, Eq. (3.90); (- - - -) higher-order model (elasticity
solution) (Van Fo Fy. 1966); (0) experimental data.