Microscale intrinsic properties of hybrid unidirectional/woven composite laminates: Part I experimental tests

Understanding of the failure composites is critical for evaluating their safety and reliability when they are in service. In this research, a combined image analysis technique using computed microtomography (micro-CT) scanning electron microscopy (SEM) proposed to study microstructures, damage hybrid unidirectional/woven composite laminate (HUWCL). Micro-CT used extract 3D microscale morphology identify internal behaviours HUWCL. A series material parameters, such as fiber volume fraction, void ratio layer mode, acquired by statistical micro-CT images. addition, surface mechanism woven unidirectional (UD) laminae further investigated SEM. It found that matrix around interface always occurs both laminae, distinct delamination between UD composites. The shows great potential combining with SEM revealing local intrinsic HUWCLs at microscale.