'Femur bone stress analysis' simulation project by ahmedhussain18


#1

I created a new simulation project called 'Femur bone stress analysis':

This project demonstrates the stress analysis of femur bone subjected to different amounts of load.


More of my public projects can be found here.


#2

Introduction

Femur or thighbone is the longest, heaviest and strongest bone in the entire human body. During walking and running, all of the body weight is supported by this bone. On its proximal end, it has a hip joint with a spherical shape also known as head of femur which allows it to move in almost any direction. On its distal end, it forms a knee joint with lower leg. In this project, static stress analysis of femur bone was performed with acting load of 10, 100 and 500 N on proximal end.

Geometry

The geometry used for the analysis was provided by Negar An from GrabCAD as is shown in the figure below.

Mesh

Two types of mesh were considered; first and second order tetrahedral mesh. Both meshes were created using Parametrized tetrahedralization meshing algorithm on SimScale platform. The second order mesh is shown in the figure below.

Analysis

Static analysis - advanced was selected as analysis type with nonlinearity set to false. The bone was fixed at the distal end whereas the force load in negative z-direction was applied on the proximal end. Three load cases were considered; load of 10, 100 and 500 N.

Results

The figures below show the vonMises stress in femur bone when load of 100 N was applied.

Furthermore, figures below show the displacement magnitude contour plot of the femur bone for 100 N load.

Note: The deformation in all above figures is scaled 100 times in order to see more clearly the final deformed shape.


#3

did you use computed tomography data for the 3D model? And does your mesh take cortical and trabecular bone into consideration?

thank you