In-situ testing under X-ray imaging

ISIS4D
Mechanics and civil engineering Platform Science for a changing planet

ISIS4D platform is dedicated to X-ray microtomography - a non-destructive imaging technique allowing to characterize the internal structure of materials. We have a microtomograph equipped with two X-ray generators as well as several detectors to cover a wide range of resolutions (from 0.4μm to 100μm) and applications (metallic, geological, organic, composite, biological, textile and paleontological materials). In particular, we conduct studies of three-dimensional characterization of the microstructure of materials (dimensional control, characterization of defects) as well as in situ studies under complex loading (coupled multi-physical and multi-axial solicitations).  We are open to all academic and industrial collaborations and propose services in line with our expertise.

Informations

Technical director: Jérôme Hosdez
Scientific director: Nathalie Limodin
Scientific director: Thomas Rougelot

https://isis4d.univ-lille.fr/

Bâtiment M6, avenue Paul Langevin
Campus Cité scientifique, Université de Lille
59650 VILLENEUVE D'ASCQ

Mots-clés

X-Ray microtomography, X-ray, Material structure, In situ testing, Triaxial tests, Compression/tension tests, Radiography, Laminography, Image analysis, Image correlation

Localisation

  • Three-dimensional characterisation of the microstructure of a wide range of materials (geomaterials, metal alloys, polymers, composites, etc.)
  • Scientific and technical assistance, user support and expertise
  1. as a pre-test for the development of the experiment
  2. for the choice of acquisition parameters, settings, data reconstruction, etc.
  • Processing and analysis of reconstructed data including the use of digital volume correlation with YaDICs open source software developed in-house
  • Development of tests for in situ monitoring of  the  microstructure evolution under coupled multi-physical and multi-axial stresses
  1. Tension-torsion fatigue…
  2. Chemical damage to concrete
  3. Couplings between microtomography and other experimental measurements (infrared thermography, image correlation, ...)

Examples of projects:

  • Detection and characterization of defects (detection of foreign bodies, porosities, cracks, delamination, etc.)
  • Dimensional analysis (measurement of wall thicknesses, identification of assembly anomalies, etc.)
  • Mesh generation (surface or volume) from real geometry
  • Numerical simulations to anticipate defects during design
  • Mechanical tests in situ
  • Monitoring by correlation of volume images (measurements of displacement fields)

The platform comprises:

  • a Ultratom Microtomograph from RX Solutions with two X-ray generators (protected by a leaded enclosure)
  • existing or developing in situ devices
  • a software for volume field measurements
  • two 3D image reconstruction and processing stations
  • a 36TB raw data storage server

See the detailed list of equipment.

Private
Groupe PSA, Décathlon, Andra

Academic
Institut Mines Télécom, LAMIH, Université Polytechnique des Hauts-de-France, UPMC, UTC, INSA Lyon, Ecole Polytechnique, Polytech Lille
Free University of Brussels (Belgium)

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