Materials characterization benches
CEVAA carries out the characterization of the mechanical and acoustic properties of materials through dedicated measurement and test benches.
Materials characteristics measurements
The CEVAA has several test facilities dedicated to characterizing the acoustic and vibration properties of materials. The CEVAA helps the industrials to develop optimized products considering the technical characteristics of the materials.
- Characterization of dynamic properties (modulus and damping) of viscoelastic materials, plastics, alloys, composites, etc.
- Characterization of the acoustic properties of porous materials
- Absorption coefficient and attenuation index measurement
- Measurement of the gross insulation of a multilayer complex or a room
- Identification of a poroelastic model
- Modeling of damping treatments, multilayer materials, composites
Materials characterization benches
Small cabin
Alpha Cabine
Impedance tubes
Oberst method
Dynamic stiffness bench
Squeak & Rattle Test Bench
Poisson's ratio characterization bench
Dynamic mechanical analysis (DMA)
CEVAA services
Mechanical properties
Acoustical properties
Other services
Beyond measurement, the CEVAA supports and advises these partners in the qualification of parts or components and in the choice of acoustic materials. In addition, the data collected on these means of acoustic and vibration tests, allow us to reuse them to solve your problems by simulation and calculation.
Accreditation for our characterization methods
CEVAA offers you the performance of material characterization according to specific specifications and protocols.
We are accredited by RENAULT (Self Agreement) for the following methods:
- D49 1977: Fibrous and alveolar materials – Acoustic absorption in
- D45 2019: Materials, parts and components – Acoustic attenuation – Small cabin measurement
- 37-06-082: Acoustic validation of parts and components by measuring acoustic attenuation in a small cabin
PSA methods are also known to CEVAA and can be carried out using our resources. We are also able to carry out tests according to the standards of other manufacturers (FORD, Stellantis, etc.). Our experience allows you to benefit from support in understanding the results.
For more information, contact us to discuss technically on your needs!