<p>The use of the composite patch bonding repair technique was initially developed for the aeronautical sector and then extended to several industrial fields given its advantages over traditional riveting, bolting, and even welding methods. Most of the studies presented in this field have focused on the repair of aluminum structures by showing the advantage of using a carbon patch in improving their strength. However, few studies have focused on the repair of steel plates with high mechanical properties, which require a careful choice of the mechanical properties of the repair. This work is part of this context. The objective is to analyze, by the finite element method, the performance of a composite patch of different types bonded for the repair of a DH-36 type steel structure in the presence of a crack emanating from a notch. Several composite patch configurations, based on a square-shaped patch, were evaluated to increase the strength of the damaged plate while reducing the J-integral value at the crack tip. The effect of composite patch material, crack size, and number of plies were compared with respect to the J-integral value in the plate, von Mises stress in the adhesive, and principal stress in the patch. The results clearly show that the different configurations presented in this study can improve the strength of the plate while selecting high-performance fibers to ensure good stress transfer from the damaged area.</p>