Evaluating the Repair Performance of the Cracked Plate Using Adhesive Shear Stresses

The aim of this study is to investigate the repair performance a cracked aluminum plate repaired with aluminum patch by using the effects of the crack length on adhesive shear stresses. Cracked aluminum plate was repaired using the aluminum patch and the adhesive Araldite 2015. It is known that shear stresses developed in bonded structures are critical ones. Distributions of the adhesive shear stresses along the adhesive layer were obtained using Franc 2D/L software. It was concluded that shear stress ?zx along the longitudinal direction becomes peak at the crack tip. However, it was seen that shear stress ?zy along the transverse direction is maximum at the ends of the adhesive bondline.