1. NUMERICAL ANALYSIS OF BIOENGINEERING CASE STUDY BY ABDULAZIZ A. AL-HEGELAN 426100273 HASAN O. ALHAZMI 426104751 AHMAD A. ALMAYMOONI 426103310 SUPERVISOR; DR ALI M. ALSAMHAN EXAMINER; PROF S. DARWISH KING SAUD UNIVERSITY, COLLEGE OF ENGINEERING, INDUSTRIAL ENGINEERING DEPARTMENT SPRING 2011 BSC PROJECT, PART II

2. Hip Replacement Surgery  The hip is the joint that connects the thigh bone (the femur) to the pelvis. In recent years, total hip replacement has become a very common operation with over 300 000 operations carried out world-wide every year.  Hip replacement is an operation to replace a natural hip joint with an artificial hip one.  It is a common procedure and effectively relives pain and restores mobility.  The replacement joint is an artificial version of the natural ball and sockets.

3. Continue  The lower part of the artificial hip joint is usually made of metal and consists of a shaft with the ball part of the joint at the top.

4. Continue  The main objective of this part of the project, is the development of solid model (CAD model) for the total replacement hip replacement surgery, which is one step for finite-element model development and for further analysis.

5. Solid Model Development (Methodology)

6. Continue

10. Cement Layer Artificial hip implant Continue

13. FE Model Development (Methodology)

14. MaterialsYoung's modulusPoisson's ratio Ni-chrome6.55E4 MPa0.2 Cement2.5E3 MPa0.38 Cancellous Bone5.2E2 MPa0.29 Cortical Bone3.0E4 MPa0.29 Continue

15. Fixed Constraint Condition Continue

16. Load Condition Continue

18. Conclusion & Suggestions  Although it is able to obtain the solid model and pre-processing the solid model for finite-element model development, it was reported the difficulty in run the computational analysis due to hardware problem. Where huge amount of memory required and also required more stable operating system for accurate and stable finite-element computation procedure.  It is suggested to run the computational analysis on more stable operating system like UNIX or Linux operating system with large memory system.

20. References Gerald T Tortora and Sandra Reynolds Grabowski 4 th edition (1996). Introduction to human body: the essentials of anatomy and physiology. Addison Wesley publishing company. Arthur Keith (2008). Menders of The Maimed; The Anatomical & Physiological Principles Underlying The Treatment Of Injuries To Muscles, Nerves, Bones & Joints. Vintage cookery books. Organs V. Organesyan (2006). Treatment of Bone Fractures and Joint Injuries: External Fixation. BKL publishers. S.A. Burger, W. Goldsmith and E.R. Lewis (2000).Introduction to bioengineering. Oxford University press, USA. S.M. Darwish, A.M. AL-Samhan (2009). Optimization of Artificial Hip Joint Parameters. Wiley VCH.

21. Thank You