(a) (a) (b) (b) Horizontal & vertical cracks i) Front ii) Back Figure 4.18 Fracture images of ; (a) G2/B3/G2, and (b) [G/B]3G (a) (a) (b) (b) Fibre breakage i) Front ii) Back Figure 4.19 Fracture images of ; (a) G2/J3/G2, and (b) [G/J]3G 129