Abstract
In order to study the strength of the metal-FRP bounded joints, both of the finite element stress analyses and experiments have been carried out for T type bounded joints. It has been found that the fracture of the bonded joints, both the single lap joints and the T type joints, can be explained well by σmax which is the maximum equivalent stress in the adhesive layer. The fracture occurs when σmax reaches a critical value σf. σf is a constant for a specific bonded joint, and it can be estimated experimentally by the strength of a single lap joint. σmax can be calculated efficiently by the developed stress analysis system. Therefore, the strength of the bonded joints can be estimated by the criterion, σmax =σf, and the criterion is applicable to the structural design of the bonded joints.
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