| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Dalmas, Davy
French National Centre for Scientific Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2014Fragmentation and Limits to Dynamical Scaling in Viscous Coarsening: An Interrupted in situ X-Ray Tomographic Studycitations
- 2013Fragmentation and Limits to Dynamical Scaling in Viscous Coarsening: An Interrupted in situ X-Ray Tomographic Study
- 2013Damage mechanisms in the dynamic fracture of nominally brittle polymerscitations
- 2013Finite size effects on crack front pinning at heterogeneous planar interfaces: Experimental, finite elements and perturbation approachescitations
- 2012Mode III cleavage of a coin-shaped titanium implant in bone: effect of friction and crack propagationcitations
- 2012Understanding fast macroscale fracture from microcrack post mortem patternscitations
- 2011Glass strengthening by polymeric coatings: combined effect of mechanical properties and confinementcitations
- 2010Brittle/quasi-brittle transition in dynamic fracture: An energetic signaturecitations
- 2009Assessment of Microelastic Properties of Bone Using Scanning Acoustic Microscopy: A Face-to-Face Comparison with Nanoindentation
- 2007Quantitative AFM analysis of phase separated borosilicate glass surfaces
- 2005The mechanics of glass and functionalised glass surfaces
Places of action
| Organizations | Location | People |
|---|
article
Mode III cleavage of a coin-shaped titanium implant in bone: effect of friction and crack propagation
Abstract
Endosseous cementless implants are widely used in orthopaedic, maxillofacial and oral surgery. However, failures are still observed and remain difficult to anticipate as remodelling phenomena at the bone-implant interface are poorly understood. The assessment of the biomechanical strength of the bone-implant interface may improve the understanding of the osseointegration process. An experimental approach based on a mode III cleavage mechanical device aims at understanding the behavior of a planar bone-implant interface submitted to torsional loading. To do so, coin-shaped titanium implants were inserted on the tibiae of a New Zealand White rabbit for seven weeks. After sacrifice, mode III cleavage experiments were performed on bone samples. An analytical model was developed to understand the debonding process of the bone-implant interface. The model allowed to assess the values of different parameters related to bone tissue at the vicinity of the implant with the additional assumption that bone adhesion occurs over around 70% of the implant surface, which is confirmed by microscopy images. The approach allows to estimate different quantities related to the bone-implant interface such as: torsional stiffness (around 20.5 N.m.rad-1), shear modulus (around 240 MPa), maximal torsional loading (around 0.056 N.m), mode III fracture energy (around 77.5 N.m-1) and stress intensity factor (0.27 MPa.m1/2). This study paves the way for the use of mode III cleavage testing for the investigation of torsional loading strength of the bone-implant interface, which might help for the development and optimization of implant biomaterial, surface treatment and medical treatment investigations.