Reflection of an ultrasonic wave on the bone-implant interface: Effect of the roughness parameters
TypeArticles dans des revues avec comité de lecture
Quantitative ultrasound can be used to characterize the evolution of the bone-implant interface (BII), which is a complex system due to the implant surface roughness and to partial contact between bone and the implant. The aim of this study is to derive the main determinants of the ultrasonic response of the BII during osseointegration phenomena. The influence of (i) the surface roughness parameters and (ii) the thickness W of a soft tissue layer on the reflection coefficient r of the BII was investigated using a two-dimensional finite element model. When W increases from 0 to 150 μm, r increases from values in the range [0.45; 0.55] to values in the range [0.75; 0.88] according to the roughness parameters. An optimization method was developed to determine the sinusoidal roughness profile leading to the most similar ultrasonic response for all values of W compared to the original profile. The results show that the difference between the ultrasonic responses of the optimal sinusoidal profile and of the original profile was lower to typical experimental errors. This approach provides a better understanding of the ultrasonic response of the BII, which may be used in future numerical simulation realized at the scale of an implant.
Showing items related by title, author, creator and subject.
Influence of various process conditions on surface finishes induced by the direct metal deposition laser technique on a Ti–6Al–4V alloy GHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; CARIN, Muriel; MORVILLE, Simon; LE MASSON, Philippe; CARRON, Denis; FABBRO, Rémy (Elsevier, 2012)The direct metal deposition (DMD) with laser is a free-form metal deposition process for manufacturing dense pieces, which allows generating a prototype or small series of near net-shape structures. One of the most critical ...
Influence of a pulsed laser regime on surface finish induced by thedirect metal deposition process on a Ti64 alloy GHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; MORVILLE, Simon; LE MASSON, Philippe; CARRON, Denis; FABBRO, Rémy; CARIN, Muriel (ELSEVIER, 2014)tThe direct metal deposition (DMD) laser technique is a free-form metal deposition process, which allowsgenerating a prototype or small series of near net-shape structures. Despite numerous advantages, oneof the most ...
Etude thermique des bains liquides et son effet sur l’état de surface des pièces fabriquées par le procédé de Fabrication Directe par Projection Laser (FDPL) GHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; FABBRO, Rémy; MULLER, Maryse; CARIN, Muriel; MORVILLE, Simon; CARRON, Denis; LE MASSON, Philippe (Société Française de Thermique / Congrès Français de Thermique - Thermique en conditions extrêmes, 29 mai - 1er juin 2012, Bordeaux, 2012)La fabrication directe par projection laser (FDPL) est un procédé de prototypage rapide et de fabrication des petites séries de pièces complexes, par simple interaction entre un faisceau laser, un substrat, et une poudre ...
3D Laser Shock Peening – A new method for the 3D control of residual stresses in Selective Laser Melting KALENTICS, Nikola; BOILLAT, Eric; PEYRE, Patrice; GORNY, Cyril; KENEL, Christoph; LEINENBACH, Christian; JHABVALA, Jamasp; E. LOGÉ, Roland (Elsevier, 2017)This paper describes a hybrid additive manufacturing process – 3D Laser Shock Peening (3D LSP), based on the integration of Laser Shock Peening (LSP) with selective laser melting (SLM). The well-known tensile residual ...
KANJER, A; LAVISSE, L; OPTASANU, V; BERGER, P; GORNY, Cyril; PEYRE, Patrice; HERBST, F; HEINTZ, O; GEOFFROY, N.; MONTESIN, T; MARCO DE LUCAS, M.C. (Elsevier, 2017)The effect of laser shock peening on the high temperature oxidation resistance of commercial pure titanium at high temperature (700 °C) was studied in long-time (3000 h) exposure under dry air. A reduction of the gain mass ...