Mixed-Mode Delamination Failure of Z-Pinned Hybrid Laminated Composites
The mixed-Mode interlaminar fracture toughness, GI/IIC, of z-pinned hybrid laminated composites is studied to investigate the effect of 3D-composites on the crack propagation resistance of delaminated composite structures. In this regard, the mixed-Mode interlaminar fracture toughness, GI/IIC, was measured using asymmetric double cantilever beam (ADCB) test method. The hybrid ADCB and z-pinned hybrid composite beams were laid-up from [G0/C0]4, [G0/C90]4, [G90/C0]4 and [G90/C90]4 to study the effect of z-pinning on the interlaminar fracture toughness. From the obtained results from test it was found that the resistance of z-pin fibres against the crack propagation in z-pinned hybrid composites can significantly increase the mixed-mode interlaminar fracture toughness.
A. Saimoto and M.H. Aliabadi
H. Ghasemnejad et al., "Mixed-Mode Delamination Failure of Z-Pinned Hybrid Laminated Composites", Key Engineering Materials, Vols. 452-453, pp. 453-456, 2011