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Constitutive models for impacted morsellised cortico-cancellous bone

Paper ID Volume ID Publish Year Pages File Format Full-Text
10811 702 2006 9 PDF Available
Title
Constitutive models for impacted morsellised cortico-cancellous bone
Abstract

Constitutive models are developed, based on the results of confined compression testing, to describe the visco-elastic, and non-linear elasto-plastic behaviour of morsellised cortico-cancellous bone (MCB). It is found that the elastic modulus, E of MCB can be expressed as a linear function of the applied pressure, p. E   varied from 3 to 30N/mm2 for pressures up to 1N/mm2. The visco-elastic behaviour of MCB can be described using a fourth-order Prony series. The plastic behaviour of MCB can be described using a Drucker Prager Cap (DPC) yield criterion, in which consolidation behaviour is described using an exponential function. The developed relationships allow MCB to be included in a realistic manner in finite element models, for example of the acetabular construct, following revision hip arthroplasty, carried out using the Slooff–Ling impaction grafting technique.

Keywords
Bone graft; Elasticity; Plasticity; Viscoelasticity; Constitutive modelling
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 27, Issue 9, March 2006, Pages 2162–2170
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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