Characterization of mechanical properties on large surfaces
The 6NAPSE Group carries out the characterization of the mechanical properties of a material on large surfaces.
As part of a material determination, manufacturers and equipment manufacturers want to know the mechanical properties of a structure without relying on a small sample that would not be representative of the characteristics of the complete structure.
Knowing the mechanical properties of a material allows manufacturers to:
- Plan and validate changes to the structure
- Simulate a system taking into account its material characteristics
- Identify a risk element in a system
Characterization of mechanical properties on large surfaces
The 6NAPSE Group carries out the characterization of the mechanical properties of materials. Our teams use a specific method when the surface is large and/or not transportable. The method works for monomaterials and multi-materials. The structure to be studied must be flat and of large surface with a small thickness (ratio of 0.01 between the surface and the thickness).
For this, the 6NAPSE Group uses a scanning laser vibrometer, in addition to its vibration test, in order to perform a dynamic vibration measurement of the displacement fields (with a large number of measurement points, greater than 1000 points) on the whole from the surface. With an inverse method, it is then possible to determine the mechanical properties of the material. This is the RICFF (Inverse Corrected Filtered Windowed Resolution) method.
This method developed by our teams makes it possible to obtain the following mechanical properties for large surfaces:
- Dynamic stiffness
- Young’s modulus in bending: material stiffness
- Damping: loss factor
The RICFF method completes the DMA analysis because it allows the identification of mechanical characteristics for higher frequencies, up to 5000 Hz.
Applications
- Characterization of the mechanical properties of a motor vehicle door or roof
- Quantification of the overall damping of a structure
- Window stiffness analysis
- Determination of the material properties of a floor
- Characterization of large steel sheets
- Characterization of construction crane cabins or trucks
- Validation of a structure built from a single block in additive manufacturing
- Identification of the risks of material change in the environment (breakage, crack)
- Measurement and analysis of variation of material properties
- Characterization of an unknown material (new composite materials)
6NAPSE Group assets
- Realization of complete Validation Plan (support of all tests of a standard)
- Extensive expertise on the RICFF method
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