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Corresponding Author

Ibrahim, Yousef

Subject Area

Production Engineering and Mechanical Design

Article Type

Original Study

Abstract

Although the understanding of the mechanical properties and fracture behaviour of bone is continuously improving, as yet it's far from complete. So, this paper represents an experimental study about the effect of static and dynamic loads under different parameters on intact bone and human hip joints. The same test will be applied on the human hip joints after insertion of the artificial femur component in the bone. A special test-rig was designed in order to fix both natural and artificial implant and expose them to a state of loading similar in magnitude and direction to that encountered in the human-being.A comparison between the stress-strain distribution of the intact and artificially implanted bones were conducted by using strain gauges. The results showed that the stresses were reversed after insertion of the artificial femoral component and the stresses were maximum at the near of the tip of the prothesis. Also, the absence of the collar-calcar causes a severe reduction of the stresses which may be due to important metabolic changes.

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