Analysis of Impact Force on Broken Femur Bone with Screwed Plates for Finding the Most Suitable Material Using FEM

Authors

  • K. G. Saravanan, A. Sivapragasam, V. Kaviarasan

Abstract

Femur bone or more commonly known as thigh bone is the higher part of the leg bone. The femur bone is the longest bone having the highest strength of all the human bones. This bone supports the weight of the body and it needs a lot of impact force to break it. However, the high impact forces including vehicle collisions, falling from heights as well as the gunshot etc. can cause the femoral fracture. The femoral fracture can be treated by surgery which involves various types of surgical processes including external fixation, intramedullary nailing, plates and screws etc. The primary objective of this project is to carry out the testing of the materials used in the metal plate which is used for the fracture treatment. In this research study the Finite Element Analysis (FEA) of the femoral fracture bone with the attachment of the plate and screws. This project presents the study of various materials used in Bone plates and the material having the high strength is finally selected as the bone plate material. The materials chosen for the analysis are Alumina, Titanium, Cobalt Chrome and Zirconium. This project emphasizes the testing of the fracture plate at the different loading conditions and finding the material most suitable for the plate which has equivalent strength to the femur bone. The analysis is conducted on the oblique femoral bone fracture in the middle portion and does not include other types of fractures such as distal tibia fractures and proximal fractures. The analysis performed on the femur bone with plate assembly yielded that the titanium is the material having the highest strength and least induced stresses. Titanium material showed the lowest strain at 0.012701 mm and also showed the lowest equivalent stress and shear stress at 2192 Mpa and 1228.01 Mpa respectively.

Published

2020-12-31

Issue

Section

Articles