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TECHNICAL PAPERS

Experimental and Finite Element Comparison of Various Fixation Designs in Combined Loads

[+] Author and Article Information
A. Shirazi-Adl, O. Patenaude

Génie mécanique, École Polytechnique, Montréal, Québec, Canada

M. Dammak

LASEM, École Nationale d’lngénieurs de Sfax, Sfax, Tunisia

D. Zukor

Department of Orthopædic Surgery, Jewish General Hospital & McGill University, Montréal, Québec, Canada

J Biomech Eng 123(5), 391-395 (Apr 17, 2001) (5 pages) doi:10.1115/1.1395572 History: Received April 27, 2000; Revised April 17, 2001
Copyright © 2001 by ASME
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References

Figures

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Experimental setup of a metallic plate fixated to a polyurethane block with screws or posts. The dimensions, eccentric combined loading, and location of four LVDTs (D1 to D4) are shown. The load is applied and subsidence (D0) measured at 3 mm away from the right edge whereas liftoff displacements (D1 and D2) are measured 2 mm away from the left edge.
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Typical finite element mesh of a plate with posts and the polyurethane block simulating the experimental studies
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Measured (EXP) and computed finite element (FE) mean axial subsidence displacements under the load (D0) as a function of applied inclined force for various design cases
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Measured (EXP) and computed finite element (FE) mean axial lift off displacements at the unloaded edge (D1) as a function of applied inclined force for various design cases
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Measured mean variation of axial lift off at the unloaded edge (D1) under 1031 N inclined force as a function of fatigue load cycle for various design cases
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Predicted effect of interface friction model on the lift off displacements (D1) for the design with porous-coated plate and posts shown as a function of applied inclined force

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