Assessment of Carbon Fibre Composite Fracture Fixation Plate Using Finite Element Analysis

Article


Saidpour, Hossein 2011. Assessment of Carbon Fibre Composite Fracture Fixation Plate Using Finite Element Analysis.
AuthorsSaidpour, Hossein
Abstract

In the internal fixation of fractured bone by means of bone-plates fastened to the bone on its tensile surface, an on-going concern has been the excessive stress shielding of the bone by the excessively-stiff stainless-steel plate. The compressive stress shielding at the fracture-interface immediately after fracture-fixation delays callus formation and bone healing. Likewise, the tensile stress shielding in the layer of bone underneath the plate can cause osteoporosis and decrease in tensile strength of this layer.
In this study a novel forearm internal fracture fixation plate made from short carbon fibre reinforced plastic (CFRP) was used in an attempt to address the problem. Accordingly, it has been possible to analyse the stress distribution in the composite plates using finite-element modelling.
A three-dimensional, quarter-symmetric finite element model was generated for the plate system. The stress state in the underlying bone was examined for several loading conditions. Based on the analytical results the composite plate system is likely to reduce stress-shielding effects at the fracture site when subjected to bending and torsional loads. The design of the plate was further optimised by reducing the width around the innermost holes.

KeywordsFinite element analysis; composites
Year2011
Accepted author manuscript
License
CC BY-ND
Web address (URL)http://hdl.handle.net/10552/1333
Publication dates
Print01 Nov 2011
Publication process dates
Deposited01 Nov 2011
Permalink -

https://repository.uel.ac.uk/item/86036

  • 5
    total views
  • 25
    total downloads
  • 1
    views this month
  • 6
    downloads this month