Publications

• Article dans une revue

Optimized piezoelectric sensor for a specific application : detection of Lamb waves

Mohamed Rguiti, Sébastien Grondel, Faysal El Youbi, Christian Courtois, Marc Lippert, Anne Leriche

This work is devoted to the development and the optimization of a new piezoelectric sensor using Lamb waves destined to aerospace structures health monitoring. In such systems, Lamb waves are usually excited and received by thin single piezoelectric transducers. One of the most critical tasks in…

Sensors and Actuators A: Physical , 2006, 126 (2), pp.362-368. ⟨10.1016/j.sna.2005.10.015⟩. ⟨hal-00138726⟩

• Article dans une revue

Isotropic and anisotropic error estimation of the mixed finite element method for second order operators in divergence form

Serge Nicaise, Emmanuel Creusé

This paper presents an a posteriori residual error estimator for the mixed FEM of second order operators using isotropic or anisotropic meshes in $R^d$, $d$=2 or 3. The reliability and efficiency of our estimator is established without any regularity assumptions on the solution of our problem.

Electronic Transactions on Numerical Analysis, 2006, 23, pp.38-62. ⟨hal-00768689⟩

• Article dans une revue

Segmentation of complex geophysical structures with well data

Christian Gout, Carole Le Guyader

In many problems of geophysical interest, when trying to segment images (i.e., to locate interfaces between different regions on the images), one has to deal with data that exhibit very complex structures. This occurs, for instance, when describing complex geophysical images (with layers, faults…

Computational Geosciences, 2006, 10 (4), pp.363-372. ⟨10.1007/s10596-006-9029-3⟩. ⟨hal-01024268⟩

• Article dans une revue

Application of the interfacial indentation test for adhesion toughness determination

Didier Chicot, P. Araujo, N. Horny, Arnaud Tricoteaux, J. Lesage

Surface and Coatings Technology, 2005, 200 (1-4), pp.174-177. ⟨10.1016/j.surfcoat.2005.02.045⟩. ⟨hal-03577795⟩

• Article dans une revue

New considerations about the fracture mode of PZT ceramics

Olivier Guillon, Dominique Perreux, Frédéric Thiebaud, Christian Courtois, Philippe Champagne, Anne Leriche, Jacques Crampon

Sintered bulk ceramics, such as PZT are brittle materials. This macroscopically implies a statistical distribution of the ultimate strengths, because defects, such as pores or cracks are responsible for the initiation of the specimen failure. Another aspect of this fracture phenomenon is the crack…

Journal of the European Ceramic Society, 2005, 25 (12), pp.2421-2424. ⟨10.1016/j.jeurceramsoc.2005.03.074⟩. ⟨hal-00019132⟩

• Article dans une revue

In vitro studies of human and rat osteoclast activity on hydroxyapatite, b-tricalcium phosphate, calcium carbonate

Francine Monchau, A Lefèvre, Michel Descamps, A Belquin-Myrdycz C, P Laffargue, H F Hildebrand

Investigations on the ceramic degradation caused by osteoclasts are designed to assess osteoclast Á/ceramic interactions and to determine which ceramics are more suitable for use as bone substitute. This study investigated the resorptive activity of osteoclasts on ceramics presenting different…

Biomolecular Engineering, 2002, 19 (2-6), pp.143-152. ⟨10.1016/S1389-0344(02)00023-0⟩. ⟨hal-03280920⟩

• Article dans une revue

On-line characterization of silica gels by acoustic near field

B. Cros, M. Pauthe, Mohamed Rguiti, J.-Y. Ferrandis

The acoustic near field technique consists in studying the features of the resonance state of an acoustic horn. The alterations of the resonance curve are investigated as a function of the evolution of the rheological properties of the medium to characterize. The contact between the sample and the…

Sensors and Actuators B: Chemical, 2001, 76 (1-3), pp.115 - 123. ⟨10.1016/S0925-4005(01)00598-6⟩. ⟨hal-01784443⟩

• Article dans une revue

Influence of porosity on Young's modulus and Poisson's ratio in alumina ceramics

M. Asmani, Christine Kermel, Anne Leriche, Mohamed Ourak

This work presents a study on the influence of the porosity level on Young's modulus and Poisson's ratio of sintered alumina. A non-destructive technique using ultrasonic waves was used to determine the different parameters. Longitudinal and transverse wave velocities are measured by…

Journal of the European Ceramic Society, 2001, 21, pp.1081-1086. ⟨10.1016/S0955-2219(00)00314-9⟩. ⟨hal-00250427⟩

• Article dans une revue

Association of porous hydroxyapatite and bone marrow cells for bone regeneration

Karine Anselme, B Noël, B Flautre, M.-C Blary, C Delecourt, Michel Descamps, P Hardouin

The preparation of hybrid material with osteoinductive capacity may be achieved by association of cultured autologous bone cells with a porous ceramic vehicle. We optimized culture conditions for rabbit marrow stromal stem cells (MSCs), notably by selection from batches of fetal calf serum. Rabbit…

BONE, 1999, 25 (2), pp.51S-54S. ⟨10.1016/S8756-3282(99)00133-7⟩. ⟨hal-02566294⟩