The tensile properties of adhesive butt joint sunder impact loading are measured with a modified split Hopkinson bar using a solid butt joint specimen. A commercially available cyanoacrylate adhesive (commonly termed an instantaneous adhesive) and tow different adherend materials (or substrates) are used in the adhesion tests. The impact tensile strength of the cyanoacrylate adhesive butt joints is determined from the applied tensile stress at failure initiation. The impact energy absorbed is obtained by numerical integration of dynamic load-displacement data. Comparative tension tests at low rates of loading are performed on an Instron testing machine. The effects of loading rate, adherend material and thickness of the adhesive layer on the tensile strength and energy absorption of the cyanoacrylate adhesive butt joints are examined in detail.
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