| People | Locations | Statistics |
|---|---|---|
| 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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Katsamenis, Orestis L.
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 20233D printing of personalised carvedilol tablets using selective laser sinteringcitations
- 2020Fabrication of an osmotic 3D printed solid dosage form for controlled release of active pharmaceutical ingredientscitations
- 2018Controlled release of 5-Fluorouracil from alginate beads encapsulated in 3D printed pH-responsive solid dosage formscitations
- 20173D printed oral solid dosage forms containing hydrochlorothiazide for controlled drug deliverycitations
- 2017Deformation mechanisms of idealised cermets under multi-axial loadingcitations
- 2017Characterization and mapping of rolling contact fatigue in rail-axle bearingscitations
- 20153-D analysis of fatigue crack behaviour in a shot peened steam turbine blade materialcitations
- 2014Nanomechanical assessment of human and murine collagen fibrils via atomic force microscopy cantilever-based nanoindentationcitations
- 2013A novel videography method for generating crack-extension resistance curves in small bone samplescitations
- 2012Mechanism of co-nanoprecipitation of organic actives and block copolymers in a microfluidic environmentcitations
- 2012Bone matrix material properties on the micro- and nanoscale
- 2010Preparation and characterization of bioceramics produced from calcium phosphate cementscitations
Places of action
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article
A novel videography method for generating crack-extension resistance curves in small bone samples
Abstract
Assessment of bone quality is an emerging solution for quantifying the effects of bone pathology or treatment. Perhaps one of the most important parameters characterising bone quality is the toughness behaviour of bone. Particularly, fracture toughness, is becoming a popular means for evaluating bone quality. The method is moving from a single value approach that models bone as a linear-elastic material (using the stress intensity factor, K) towards full crack extension resistance curves (R-curves) using a non-linear model (the strain energy release rate in J-R curves). However, for explanted human bone or small animal bones, there are difficulties in measuring crack-extension resistance curves due to size constraints at the millimetre and sub-millimetre scale. This research proposes a novel "whitening front tracking" method that uses videography to generate full fracture resistance curves in small bone samples where crack propagation cannot typically be observed. Here we present this method on sharp edge notched samples (<1 mm×1 mm×Length) prepared from four human femora tested in three-point bending. Each sample was loaded in a mechanical tester with the crack propagation recorded using videography and analysed using an algorithm to track the whitening (damage) zone. Using the "whitening front tracking" method, full R-curves and J-R curves could be generated for these samples. The curves for this antiplane longitudinal orientation were similar to those found in the literature, being between the published longitudinal and transverse orientations. The proposed technique shows the ability to generate full "crack" extension resistance curves by tracking the whitening front propagation to overcome the small size limitations and the single value approach.