Ultrasounds

This research operation is mainly oriented, through both fundamental and applied approaches, towards the
and applied approaches, towards the development of ultrasonic methods for the evaluation and
non-destructive testing (NDT) of materials. The research activities aim at contributing to
a better understanding of the linear and non-linear interactions between ultrasonic waves
and complex solids, bringing together different approaches implemented on the theoretical and experimental levels
theoretical and experimental levels :

Ultrasonic waves and guided waves in solids and biological media,
Acoustic emission for the characterization of structural materials,
Non-linear acoustics and interferometry by CODA waves for ECND,
Mechanical solicitation for the characterization of composite materials.

This OR includes 10 permanent researchers. In 2020, 10 PhD students are working in this OR (15 theses have been defended since 2015). This OR also has certain specificities : (i) the permanent researchers involved are spread over different sites (UFR S&T, ENSIM, IUT, ESEO and CTTM), (ii) the proposed approaches are diverse both in the methods used and in the materials applied. Finally, it is important to note the federative character of the ECND theme at the LAUM, which involves to various degrees the participation of 9 other colleagues in the work carried out here. At the national level, in addition to its academic collaborations (for example the laboratories of the ECND-PdL project and of FANO), the OR ULTRASOUNDS has strong industrial collaborations. At the regional level, the collective emergence project "ECND-PdL has allowed to reinforce the federative character of the ECND theme and has resulted in the creation of the GIS ECND-PDL (https://ecnd-pdl.fr/) in 2018.