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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1, Number 5, May 2009

Issue on Mechanical Engineering

Page(s): 118-121

Static Analysis Of Bi-Polar Femur Bone Implant Using Fea

H.G.Hanumantharaju, H.K.Shivanand

Full text: PDF

Abstract

Femur is leg bone of the human body undergoing more deformation. Being longest and heaviest in size, failure of femur neck is the most common among bone failures in human especially in woman. Orthopedic implantation is done in case of failure. Before implantation it is necessary to analyze the perfectness in case of its material property, size and shape, surface treatment, load resistance and chances of failure.

Analysis is done for the stresses formed in femur implant of Ti-6Al-4V material under static loading condition using ANSYS software. Since each femur carries 1/2 the body weight , analysis is done for 25kg, 50kg, 100kg, 200kg loads, including the cases of patient carrying certain weight. From analysis it is found that the loads have no effect on failure of implant, since the values of stresses and deformation are very low. Thus failure of implant is maximum by wearing, corrosion and all due to improper material selection of implant.

And based on the analysis it can be concluded that, since Ti-6Al-4V is a low density material (4520kg/m3) for implantation, it makes the patient feel free to move his leg. Analysis is done for the stresses formed in femur implant of Ti-6Al-4V material under static loading using FEA techniques. Since each femur carries half of the body weight, we have taken the extreme weights, that is, the least possible weight and the heaviest possible weight. From analysis it is found that the loads have no effect on failure of implant since the values of stresses and deformation are very negligible.

 Since TI-6AL4V is a low density material, which has excellent bio compatible and mechanical properties, it is ideal for the use of an implant in surgeries.

Finally the success of implantation depends on implant material and size, implantation method and its handling by the patient.

Index Terms

Femur bone, orthopedic

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