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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Riches, Philip
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Characterisation of native and decellularised porcine tendon under tension and compressioncitations
- 2023A chaos-inspired biomechanical biomarker of ankle instability
- 2016Paradoxical size effects in composite laminates and other heterogeneous materialscitations
- 2015The effects of decellularisation on the mechanical properties of bone, and subsequent recellularisation of the samples.
- 2014Characterisation and Validation of Sawbones™ Artificial Composite Femur material
- 2013On the Poisson's ratio of the nucleus pulposuscitations
- 2012Assessment of forces imparted on seating systems by children with special needs during daily living activitiescitations
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document
Characterisation and Validation of Sawbones™ Artificial Composite Femur material
Abstract
Sawbones 4th Generation composite bones are useful tools for the mechanical testing of orthopaedic devices and validation of FE models. The products are intended to provide more reliability and less variability than cadaveric specimens, and have been often used in biomechanical analyses. However, no independent validation of these data exists. Three point bending tests on the cortical component of the femur and on sheets of the same material were conducted in separate independent laboratories to determine the Young’s modulus of the material.These data were incorporated into a FE model of a femur to be validated against an equivalent mechanical test using both force-displacement and strain gauge data.There was significant inter-sample variability in Young’s modulus, potentially due to microstructural heterogeneity. All samples were significantly less stiff than the quoted value of 16.0 GPa (Sawbones 2014), with a mean Young’s modulus of 10.7 GPa calculated for the cortical sample and 8.4 GPa for the sheets. The FE model compared favourably with the mechanical testing, with a 3.3% higher stiffness than that recorded experimentally, giving confidence in our Young’s modulus data. This paper has highlighted that that care must be taken when employing these products as substitutes for cadaveric specimens.