Constitutive models for impacted morsellised cortico-cancellous bone

A. Phillips; P. Pankaj; F. May; K. Taylor; C. Howie; Asif Sohail Usmani

doi:10.1016/j.biomaterials.2005.10.034

Constitutive models for impacted morsellised cortico-cancellous bone

A. Phillips, P. Pankaj, F. May, K. Taylor, C. Howie, Asif Sohail Usmani

Research output: Journal article publication › Journal article › Academic research › peer-review

27 Citations (Scopus)

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. © 2005 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2162-2170
Number of pages	9
Journal	Biomaterials
Volume	27
Issue number	9
DOIs	https://doi.org/10.1016/j.biomaterials.2005.10.034
Publication status	Published - 1 Mar 2006
Externally published	Yes

Keywords

Bone graft
Constitutive modelling
Elasticity
Plasticity
Viscoelasticity

ASJC Scopus subject areas

Bioengineering
Ceramics and Composites
Biophysics
Biomaterials
Mechanics of Materials

More information

10.1016/j.biomaterials.2005.10.034

Cite this

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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. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.",

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AU - Pankaj, P.

AU - May, F.

AU - Taylor, K.

AU - Howie, C.

AU - Usmani, Asif Sohail

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N2 - 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. © 2005 Elsevier Ltd. All rights reserved.

AB - 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. © 2005 Elsevier Ltd. All rights reserved.

KW - Bone graft

KW - Constitutive modelling

KW - Elasticity

KW - Plasticity

KW - Viscoelasticity

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ER -

Constitutive models for impacted morsellised cortico-cancellous bone

Abstract

Keywords

ASJC Scopus subject areas

More information

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