Reinforcement of poly (polymethylmethacrylate) with carbon fiber and alumina as a composite material for orthopedic implant

In this work,experimental and theoretical properties of composite materials arepresented. The optimal mechanical properties of the polymer polymethyl methacrylate(PMMA) material that used in manufacturing internal Orthopaedic.The (PMMA) isused as matrix reinforced by two materials,composite with Carbon-fibre(CF) andalumina (Al2O3). The composite materials are controlling three variables; theexistence, amount of (Al2O3 and CF) and the type of angle distribution CF. Thetensile test used to study the mechanical properties. The scanning electron (SEM)linked with energy dispersive spectroscopy (EDS) and optical microscopy were persained the presence of the materials, microstructure and solidified samples. The solidwork program was used to make model for bone bridge drowning in three dimensions.The model was used by the finite element analysis ANSYS 14.5 program that is used todesign sample orthopaedic (humerus bone section) and test load 10 Kg applied on it.The theoretical results agree with experimental results in terms of tensile test that isthe composite material PMMA+AL2O3+CF) with uniform distribution for CF givebetter properties in terms of increasing in Yield stress, decreasing density andmaximum deformation