Improving the Mechanical Properties of a Car Bumper by Using Glass Fiber Reinforced Composite Laminates and Nano-ceramic Filler

In this study, mechanical tests were performed on a Chinese car bumper of the Chery model, which was chosen for examination due to its widespread use in Iraqi streets. It also compared best specimens obtained these study stages. Glass fiber mats and nanoparticles have been mixed with unsaturated polyester resin (UPE) two first stage, fibers volume fraction 14% properties calculated. second different weight fractions zirconium oxide (ZrO2) added mixture, recalculated. The experimental test's results illustrated that tensile strength, fracture toughness, damping ratio composite material enhanced when mixing vf glass by about (285.85%, 207.56%, 100%) respectively, bumper, while impact resistance decreased (-24.55%). same repeated after adding (1%, 2%, 2.5%, 3%, 3.5%, 4%) it observed had significant effect since at first, improved them until reached 2.5 wt.%, but any higher addition than caused decrease enhancement properties. Thus, found wt.% gave us improvement resistance, (436.32%, 47.28%, 438.66%, 52.3%)