40 datasets found

International audience

National audience

Ces travaux ont été réalisés au Département de Mécanique du Solide et de l'Endommagement de l'Office National d'Etudes et de Recherches Aérospatiales.

The aim of this work is the eddy-current testing (ECT) of ferromagnetic materials within magnetic sensors, such as Giant Magneto-Resistances (GMR). Two complementary...

This thesis is part of the long-term perspective to implement in vivo some new noninvasive methods to monitor the bone prostheses sealing or osseointegration (dental...

There is a increasing need for non destructive testing applied to concrete civil works. The use of surface waves, especially Rayleigh waves, fulfill many requirements...

The objective of this thesis is the development of modeling tools for eddy current testing (ECT). Currently there is a tendency to use flexible sensors which represent...

This work focuses on the development of an experimental technique which can help to define the key parameters for post-impact behaviour of laminated composite panels....

This thesis work is placed between the scientific domain of ultrasound non-destructive testing and algorithm-architecture adequation. Ultrasound non-destructive...

The composite materials are widely used in industry because of their high mechanical resistance and low density. The diversity of composite materials application...

Cet ouvrage s'intéresse à l'évaluation des indicateurs de durabilité du béton ainsi qu'au suivi et à la prédiction de l'évolution des dégradations physico-chimiques,...

Time delays are generally estimated for NDT&E purposes, under the assumption of dispersion free media. As opposed to the latter, this work intends to adapt the...

La pérennité des performances des ouvrages en béton précontraint repose sur la double vérification du maintien de l'intensité de la force de précontrainte et de la...

Les câbles sont des éléments structuraux critiques pour les ouvrages d'art tels que les ponts en béton précontraint, les ponts suspendus et les ponts à haubans. Leur...

A model using lifetime functions is used to evaluate the probability of survival of bridge components. The possible outcomes associated with nondestructive inspections...

National audience

Near surface imaging is essential for geotechnics purpose. Characterization and identification of the first layers - between 0 and 10m - of the ground is necessary for...

In recent years, requirements in terms of service-life of civil engineering structures have become more and more stringent, so that the focus of designers and owners...

We put forward an innovative method for the non-destructive testing of durability in cementitious material. It is based on microporosity probing by high-frequency...

X-ray diffraction is becoming a prevailing technique for non invasive inspection of luggage. Compared to traditional techniques of transmission imaging, the...