J. Phys. IV France 10 (2000) Pr9-167-Pr9-172
Evaluation of impact tensile properties of adhesive butt jointsT. Yokoyama1 and Y. Sogabe2
1 Department of Mechanical Engineering, Okayama University of Science, 1-1 Ridai-Cho, Okayama 700-0005, Japan
2 Department of Mechanical Engineering, Ehime University, 3 Bunkyo-Cho, Matsuyama 790-8577, Japan
The tensile properties of adhesive butt joints under impact loading are measured with a modified split Hopkinson bar using a solid butt joint specimen. A commercially available cyanoacrylate adhesive (commonly terned an instantaneous adhesive) and two 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.
© EDP Sciences 2000