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We help you to design innovative materials or systems based on a rigorous methodology.
Doing so, we may need to develop new predicting models or experimental benches adapted to the behaviors of these newly developed materials.

You can already benefit from our public research works or build a specific partnership with us.

Around 30% of our time is dedicated to internal R&D studies to anticipate your needs.
Most of these internal research works are published in international peer-reviewed scientific journals.
Check our publications for details.

Material designs

We design materials for thermal, mechanical or acoustical applications.
Below are some current or past examples of our work.

Optimisation of combined sound absorption and sound insulation performances of multi-layer systems
Design of multi-fonctional materials (with mainly acoustical and thermal capabilities)
Optimization of pore sizes, distribution and shape of mineral foams
Increase of acoustic properties of composite porous materials based on recycled matters
Sound absorption measurements, characterizations and modeling of systems composed of perforated plates and porous materials for building applications

 

Modeling developments

Our models are based on the latest analytical, TMM, FEM, SEA or LBM developments.
Below are some current or past examples of our work.

Investigation of the potential of composite porous materials for sound absorption and sound insulation

Description of physical phenomena involved in the damping of concrete floors

Development of a hybrid TMM/FEM model

Development of a model to qualify the sound absorption performance of anechoic wedges

 

Our methodology

1. Characterize the material

i.e. determine the intrinsic parameters of the materials via measurements or computational approaches (e.g. micro-macro approaches).

2. Understand the material functionning

From the characterization results, deduce the physical phenomena which can occur in the material.

3. Model and optimize the performances

Once physical phenomena are identified, a model can be chosen or build for the material and an optimization of the performances of this material or system containing this material can be processed.

4. Capitalize on the knowledge

One keypoint of our work is that you capitalize on the knowledge we have aquired via a transfer of technology, training programs, customized computational tools, custom test rigs...

Matelys' methodology has been awarded twice since 2011:

SFA Industry 2012

Matelys has been awarded an Industry 2012 prize by the French Society of Acoustics (SFA).

Golden decibel Research 2011

Matelys has been awarded the Golden Decibel 2011 in the category Research by the French National Council for Noise (CNB).