Philip Cardiff

Contact Stress Analysis in OpenFOAM: Application to Hip Joint Bones

Supervisors: Alojz Ivanković

David FitzPatrickRob Flavin

Aleksandar Karač

2

Presentation Outline

Research Background

CT Segmentation

Development of a Contact Stress Solver

Development of a Hip Joint Model

MeshingStress AnalysisGait Analysis

Research Background

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4

Anatomical Background

Development of a Contact Stress Solver

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Slave vertex penetration

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Slave vertex penetration - close-up view

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Slave vertex force

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Slave traction - applied boundary condition

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Sphere-and-Brick test case

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Sphere-and-Brick test case

Contact Stress Analysis

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Abaqus OpenFOAM

- contact validation

Contact Stress Analysis

13

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- contact validation

Frictionless sliding

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Frictionless sliding - 3D

Parallelisation

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Development of a Hip Joint Model

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CT Segmentation

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Volume meshing

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- polyhedral mesh

Material assignment

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Contact Stress Analysis

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- 2D hip joint model

Abaqus OpenFOAM

Contact Stress Analysis

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- 3D hip joint model

Abaqus OpenFOAM

Contact Stress Analysis

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- 3D hip joint modelAbaqus homogenous model

Abaqus sandwich model

Gait Analysis

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Gait Analysis

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Philip Cardiff

Thanks

Contact Stress Analysis in OpenFOAM: Application to Hip Joint Bones