Platforms › PREED
Experimental platform · PREED
Dynamic testing resources and expertise
The Dynamic Testing Resources and Expertise Platform (PREED), formed by merging the Dynamic Testing Resource Centre (CRED) and the High Pulsed Power platform (HPP), brings together facilities dedicated to experimentation in the field of material and structural dynamics.
Field
Material and structural dynamics
Equipment
Mechanical testing, high-speed imaging, high pulsed power
Quality
ISO 9001-type quality process
Key strengths
> 300 m/s
Target impacts by various projectiles: elastomer ball, metal part, ice
From slow to ultra-fast
Low to very high strain rates, uniaxial, complex and multiaxial loading
High-speed imaging
High-speed, high-resolution and thermal cameras, digital image correlation (DIC)
ISO 9001
ISO 9001-type quality process, research conducted in partnership with industry
Overview
The loading facilities are highly varied and make it possible to test materials from low to very high strain rates, under uniaxial loading as well as complex and multiaxial loading. All tests are instrumented with cameras, which may be high-speed, high-resolution or thermal, and whose images are processed by analysis algorithms (DIC in particular). Research carried out within PREED is generally conducted in partnership with industry.
Experimental facilities for your industrial and academic studies
These facilities are dedicated to:
01
Dynamic and quasi-static characterisation of the mechanical behaviour of materials
02
Study of target impacts by various projectiles (elastomer ball, metal part, ice) at more than 300 m/s
03
Structural crash testing
All activities follow an ISO 9001-type quality process.
Flagship equipment
A selection of the platform’s equipment. The complete, up-to-date list is kept in the GeM directory of experimental facilities.
Key projects
PhD thesis
Experimental characterisation of the strain-rate dependence of materials using data-driven identification
PhD thesis: A. Vinel, supervisors: Réthoré, Seghir
High-speed tensile test on a notched specimen with displacement and temperature field tracking by high-speed cameras
Deviatoric stress vs pressure obtained by data-driven identification
PhD thesis
Experimental testing of masonry structures subjected to extreme loads
PhD thesis: A. Morsel, supervisors: Stefanou, Kotronis, Racineux
miniBLAST: experimental device for laboratory testing of structures subjected to blast loads
Photos of a stone masonry wall model subjected to an explosion
Industrial chair
Sealance Chair
The Sealence industrial chair aims to develop a unified formulation for compressible and incompressible elastomeric materials. Specific equipment has been developed, in particular to measure the compressibility of elastomers.
Heads: E. Verron, M. Coret
Postdoctoral researchers: H. Madeira and I. Pivdiablyk
PhD students: A. Bouchet and K. Saleh
Assistant: A. Levesque
Experimental set-up for hydrostatic compression under nitrogen
Compressibility measurement of an elastomer filled with hollow spheres