The Numerical Modeling of Human Pelvic Bone with Artificial Acetabulum

Bioengineering concerns many important problems apply to human body. The pelvic joint and its correct working is one of them. The pelvic bone is one of the most important supporting elements in human pelvic joint but it is liable to suffer an injury. Very often before and after operations the knowledge of the stress and strain distribution in the pelvic bone is needed. It is particular important when the THA operation is performed and the artificial acetabulum is fitted. Because the safety of patient should be taken into account there are only two possibilities: model testing and numerical calculations. Before numerical calculations the numerical model should be prepared. In the paper the numerical model is prepared on the ground of the geometrical data from 3D scanning or CT. For checking the numerical model a simple benchmark was proposed, with force acting in acetabulum by ceramic ball. The results for selected load cases are presented.