Contact Analysis of Femur and tibia for eliminating material wastage and time used in experimentation by FEA approach

Abstract

The main function of the bone is to serve like a base for the body, and to carry the weight of human body. In case of traumatic accident when force is applied and sudden jerks act against the bone, it can lead to bone injury and result in variety of bone injuries. The joint made of the femur bone which on the other side is connected to the tibia bones enabling them to form a complex hinge joint that is the knee, allowing for ease of movement. Knee is a particular joint which is crucial for supporting the body weight and also providing the flexion and extension motions during the day to day activities. A 3D model of the Knee joint was design using CREO and final assembly of the product being executed in .IGES format. Finite element analysis was carried out using different loading conditions of the knee joint to simulate the , displacement stresses and deformation using ANSYS Workbench. Contact behaviour of two materials were simulated which can be used as alternative of human bone. Material taken for analysis are Grade 5 alloy of Titanium (Ti-6Al-4V) and Magnesium (WE43). The study is in comparison to the characteristics of natural human bone. From the simulation it has been found out that alloy of Magnesium is effective alternative of human bone.