Re-visiting the Beam Models for Adhesively Bonded Single-Lap Joints Part II: Comparison of Adhesive Stress Predictions

Abstract

In the Part I of this paper, bending-moment predictions for single-lap joints in tension from four theoretical beam models were compared. One of the models evaluated included the corrected form of the original Hart-Smith expression. The authors then, using Hart-Smith's approach, developed a closed-form solution to evaluate the effects of different boundary conditions on the bending moment. For practical applications, the study showed that, except for the Hart-Smith simplified solution, all four models were able to predict similar bending moments at the overlap edge for both long and short overlap joints. In this Part II of the paper, the work in Part I has been extended to compare the estimates of adhesive peel and shear stresses along the overlap region of single-lap joints obtained using the modified Goland-Reissner, Oplinger, and the authors' models. Hart-Smith did not offer expressions for predicting adhesive stresses. However, his analytical approach was combined with the Goland-Reissner's equilibriu...