Bonding surfaces with curve geometries and investigation of the mechanical properties

In this thesis, test specimens with different curved surface geometries such as cycloid, epicycloid, involute and 45 degrees, and the adhesive interface were modeled in Solidworks program, and these models were combined with adhesive and tensile and three-point bending analyzes were performed in ANSYS program. Then, the modeled samples were manufactured on a CNC wire erosion bench using St 52 structural steel, and the samples were adhered using DP 8405 of the 3M brand as the adhesive type. Tensile and three-point bending tests were applied for these bonded curved surface specimens, 3 sets for each test. During the finite element analysis, the damage load of 45 degrees from the curved surface geometries was found and this load was applied to the parts with other curved surface geometries. As a result of the finite element analysis, it was determined that the curved surface with the maximum tensile and maximum bending strength is a 45 degree curved surface. Later experimental studies also supported this result. KEYWORDS: Curved surfaces, adhesive, tensile analysis, three-point bending analysis, finite elements, damage load