Abstract
This paper deals with three-dimensional stress analysis of adhesive butt joints subjected to tensile loads, to help establish fracture criteria. In this analysis, the adherends and adhesive bond are replaced with finite solid culinders. Stress distributions in adhesive joints are analysed using a three-dimensional theory of elasticity. The effects of a disbonded area and a spew fillet on the principal stress distributions are shown by numerical calculation. Where a joint has a disbonded area, the stress singularity increases with a decrease in the diameter of the spew fillet, and the stress singularity decreases with an increase in the diameter of the adhesive. The analytical result is compared with that obtained by an experiment concerning the strain produced on the adherends in the case of a disbonded area. Both results are satisfactorily consistent.
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