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ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

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(a) (b)<br />

Figure 6. The meshed model of the knee implants (a), the FE model showing the<br />

boundary conditions (b)<br />

5. FINITE ELEMENT MODEL<br />

The 3D model of the knee implant was transferred to FE modeler of ANSYS®<br />

Workbench Software (v13.0, Canonsburg, PA, USA) to create FE Model. Solid 72<br />

element was chosen for element type while the mesh of the knee implant has totally<br />

301146 elements as shown in Fig. 6(a).<br />

The FE model was fixed at the bottom of the ibia while a force of 3200 N [10] was<br />

applied at the top of the femur as shown in Fig. 6(b).<br />

Figure 7. Stress distributions, von Mises for the femoral component (a), von Mises for<br />

the UHMWPE (b), von Mises for the femur (c), contact pressure for UHMWPE.<br />

6

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