Abstract: Knee prosthesis has done a lot of advancement in the recent decade as this facilitates people to do various activities even
after their old age or some injury. Knee-joint is a complex structure of the human body having a complex shape femoral condoyle
which moves over the complex shaped meniscus of the tibia bone and acquires various critical loads at various walking, moving
and sitting activities. Metal alloys have been the materials of choice since the start of orthopedic surgery. The materials that are
utilized as biomaterials are cobalt-chromium alloy, titanium alloy, stainless steel, zr02 are most usually utilized biomaterials for
knee implants. The objective of this Project is to prepare 3D CAD model of prosthetic knee joint implants study the distribution of
von-misses stresses, total deformation, shear stress and in the same by assigning it the different combination of biomaterials for
femoral and tibia components. 3D modeling software Catia is used for 3D modeling of knee implant and finite element analysis
software ANSYS 14.5 and finally concluded the suitable material for knee prosthesis.
Keywords: Bio materials, FEA (Finite Element Analysis), Prosthesis, von-misses stresses, total deformation, shear stress, femoral
and tibia components.