Bimetals are widely used in various industries including aerospace, military, marine and infrastructure. In these industries, materials with high strength to weight ratio are required. Aluminum is one of the most widely used metals due to its certain properties such as low weigh, high electrical and thermal conductivity and corrosion and wear resistance. Powder-solid bimetals made up of metal sheets and ceramic powder are popular because of combination of the metal’s properties (high formability) and ceramics (high young's modulus). In comparison to macro-scale powder, nanoscale powder generally yields more desirable mechanical properties. Adhesion of powder to bimetal strips is essential in creating the integrity of structure and desired properties of these materials. In this study, the effect of creating grooves with different shapes and patterns on the surface of aluminum strips in bimetal aluminum-aluminum powder/nanosilica on adhesion of powder to strip was investigated. To create adhesion, aluminum oxide layer that is naturally formed on the surface of aluminum should be removed. Grooves can help break the oxide layer and improve adhesion through creating stress concentration points. Therefore, in this study, groove with different shapes and patterns were modeled on the surface using Abaqus finite element package. As the samples are pressurized during compaction, a pressure boundary condition was enforced on the surface of strips. Using the simulation results, the grooves on which the longitudinal tensile stress in the oxide layer was higher than the ultimate tensile strength of alumina were selected for experimental testing. The selected grooves were created on the surface of aluminum strips through the machining process. 1WT% of nanosilica powder were mixed with pure aluminum powder using a planetary ball mill at 250 rpm for 2 hrs. The powder was then placed between aluminum strips and compacted under 200 MPa pressure. The specimens were then sintered for 1 hr at 600 °C in a furnace with Argon atmosphere. The adhesion was evaluated by peeling test according to ASTM-D1876-01. The effect of type, depth, and density (number of grooves in 4 mm length) of grooves on the adhesion force was studied and the optimum pattern was introduced. The results were analyzed by observing the images of microstructure. The results showed that the simulation results are qualitatively in good agreement with the experimental results. The uniaxial stress-strain curves of the samples were obtained using uniaxial tensile test according to ASTM-E8 and the effect of different groove patterns on the mechanical properties was studied. It was also observed that samples that exhibit greater adhesion in peeling test have a higher tensile strength. The groove pattern with density of 3, depth of 0.8 mm and shape of square was found to be optimal among the samples in terms of the adhesion force. Keywords: Aluminum matrix nano composites, Solid-nanopowder bimetals, Adhesion, Surface patterns.