It was recently proposed (Goussev, O. A., Zeman, K. and Suter, U. W., J. Adhesion 56, 45 (1996)) to characterize the joints between materials directly by the maximum bending moment, M-max, borne just prior to delamination (delamination moment). This alternative to the energy-release-rate approach was first introduced for the blister test configuration. Here we extend this idea to a cantilever beam test. We suggest, therefore, to evaluate the bending moment in the cantilever-beam experimental setup with an elastic upper plate through direct measurement of the curvature of the upper plate in the vicinity of the separation line. For the profile measurement and determination of the exact location of the delamination line, the projection-moire technique was employed. The methodology was tested on measurement of adhesion of an epoxy adhesive to steel. It was shown that the value of the maximum bending moment remains approximately constant during the delamination, indicating that this quantity is a physical characteristic of the joints between materials.