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- Title
Effect of Interaction the Porosities on the Mechanical Behaviour of Orthopaedic Cement THR Subjected to Static and Dynamic Loads.
- Authors
Benouis, A.; Serier, B.; Benbarek, S.; Bouiadjra, B. Bachir; Bouziane, M. M.
- Abstract
In this work we analyze three-dimensionally by the finite element method, the level and the Von Mises stress equivalent distribution induced around a cavity and between two cavities located in the proximal and distal bone cement polymethylmethacrylate (PMMA). The effects of position around two main axes (vertical and horizontal) of the cavity with respect to these axes, the interdistance (cavity - cavity) and the type of loading (static and dynamic) on the mechanical behaviour of cement orthopaedic were highlighted. We show that the breaking strain of the cement is largely taken when the cement left in its proximal part, containing cavities very close adjacent to each other is subjected to dynamic efforts. This work highlights not only the effect of the density of cavities, in our case simulated by interdistance cavity-cavity, but also the nature of the activity of the patient (patient standing corresponding to static efforts and the normal walking of dynamic forces) on the mechanical behaviour of cement.
- Publication
Mechanika, 2014, p47
- ISSN
1392-1207
- Publication type
Academic Journal