Abstract
Al–Li alloy laminate, as an advanced fibre metal laminate, has not been researched in fatigue crack growth and delamination behaviour. This paper investigates the crack growth, delamination shape and size of Al–Li alloy laminate under constant amplitude fatigue loading. The results indicate that the crack growth rate of Al–Li alloy laminate is almost constant like other fibre metal laminates. More connected bridging fibres would result in slower crack growth and crack growth rate would accelerate at the high stress level. The delamination shape becomes larger and transforms from triangle to a semi-elliptical shape with crack length increasing.
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