Investigation of the resistance of double reinforced adhesion connections with different dimensions and materials, and optimization of their resistance using Taguchi method

The use of adhesive joints is increasing in aerospace, aviation, automotive, construction and marine industries that necessitates connection reliability in adhering the materials, due to their easy to apply properties, low-costs and lightweights compared to traditional jointing methods such as bolts, rivets, welding and soldering. Due to the high fatigue strength, resistance to seawater corrosion and light weight, aluminum alloys; and with their high satiety, fracture strength, light weight, and high specific strength and good dimensional stability etc. properties glass fiber reinforced composite materials have widespread uses. In this thesis study, the tensile forces of AA-5083 and glass fiber-reinforced composite (EP GC 201) patch material were experimentally measured using a DP-460 adhesive of AA-5083 Aluminum alloy of 4 mm thickness, 70 mm length and 25, 30, 35 mm width. The data obtained from tensile test were then considered in finding the bonding parameters that yield the maximum tensile strength using Taguchi Method and ANOVA analysis. From the experimental results and the ANOVA analysis it was determined that the parameter having the greatest influence on the pulling force of the bonding link is the patch overlay length.