Abstract
In this study, double cantilever beam (DCB) specimens made of aluminum foam were manufactured according to the BS 7991 and ISO 11343 standards. The thickness variable was set as t, and five specimens with thicknesses of 25~65 mm were manufactured. The manufactured aluminum foam DCB specimens were bonded using a single-lap joint method, and the force reaction due to forced displacement was determined. The five specimens had the maximum force reaction when the forced displacement was approximately 10~15 mm. The force reaction decreased rapidly once the maximum force reaction occurred. Subsequently, when the forced displacement increased by approximately 20 mm, the force reaction was negligible, i.e., adhesive strength disappeared. To evaluate the data obtained from the experiment, ANSYS was used to perform finite element analysis. The analysis results closely matched the experimental data. However, because there are limitations to the application of the viscosity of adhesives to actual construction structures, a small difference was observed from the time when the maximum force reaction occurred to the time of adhesive interface failure. The experimental results of the present study can be applied to actual complex structures to analyze their fracture behavior and to determine their mechanical characteristics.
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