FINITE ELEMENT ANALYSIS OF KNEE IMPLANT AND PROTOTYPE FABRICATION USING RPT PROCESS

The aim of this research work is to do finite element analysis of patient specific knee implant and compare the stress analysis results with commercially available knee implant and Fabrication of prototypes of Patient Specific knee implant and commercially available knee implant are done using FDM additive manufacturing process. In this research, it is proposed to develop a three-dimensional model of knee implant from .stl file of knee joint using software's like meshlab, NetFabb and CATIA software's. The data is obtained from Sunshine Hospital, Secunderabad. Based on the dimensions of knee joint, it is proposed to Design a Knee implant in Catia software. Once the 3D CAD model is designed in Catia software, it is meshed in ANSYS and finite element analysis is performed for varying loads (500N-5000N). The obtained results are compared with the commercially available knee implant. According to walking condition the patient specific knee implant is analyzed for different flexion angles (15, 45, 60 degrees). Fabrication of prototypes of patient Specific knee implant and commercial available knee implants are done using FDM additive manufacturing process.