Experimental Study of the Impact of Notches Made in the Front Edge of Adherends on the Properties of Static and Fatigue Strength of Adhesive Joints

This paper presents the effect of simple structural changes consisting in making notches on edge adherends static and fatigue properties adhesive joints. The study is based set experimental strength tests single lap shear It has been shown that a slight increase load capacity possible by using adhesive-filled notches. However, this modification leads to an standard deviation test results. Based done at limit number cycles equal 2×106, it was use front adherends, which are filled with adhesive, can significantly lifetime joint. area low-cycle fatigue, where for stress maximum value 11.5 MPa, average 481.5% joints On basis fractography analyses SEM microscopy, positive caused absorption some energy filling notches, due increased susceptibility elastic deformations.