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Impact experiments are conducted to investigate the interaction of a single dynamic crack with a perpendicular interface in a glass sheet.High speed imaging is employed to optically record the phenomena.A notched glass sheet having an interface normal to the symmetric axis is impacted from one side on the notch with a foam projectile.A single crack initiates by the dynamic impact loading and propagates into the interface.Experimental results show that behavior of the crack/interface interaction depends on the interracial properties.The crack stops if the interface has no adhesive.The crack passes through the interface if it has a very thin layer of adhesive.The crack branches into multiple cracks if the interface has a layer of adhesive with a finite thickness.The crack is arrested at the interface if the glass surface across the adhesive layer has a high quality.Peridynamics is used to model the impact event and numerically simulate the crack interaction with the interface.