Open Access
Table 2
Properties of the characterized samples. hi is the thickness of each layer i, ρi is the density of each layer i, E is the modulus of the Young’s modulus, η is the loss factor (defined in Eq. (8)), ν is the Poisson’s ratio and m is the mass of each layer.
| hi [mm] | ρi [kg.m−3] | E [GPa] | ν | η [%] | m [g] | |
|---|---|---|---|---|---|---|
| Sample A | ||||||
| Manufacture, June 2021 | ||||||
| Skins (aluminium) | 3.2 | 2700 | 71 | 0.33 | 0.05 | 104.0 |
| Core (epoxy) | 0.3 | 1300 | 1.9 | 0.3 | 6 | 3.8 |
| Sample B | ||||||
| Manufacture December 2021 | ||||||
| Skins (aluminium) | 3.2 | 2700 | 71 | 0.33 | 0.05 | 104.0 |
| Core (epoxy) | 0.3 | 1300 | 1.9 | 0.3 | 6 | 4.5 |
| Sample C | ||||||
| Manufacture January 2022 | ||||||
| Skins (aluminium) | 3.2 | 2700 | 71 | 0.33 | 0.05 | 104.0 |
| Core (epoxy) | 0.3 | 1300 | 1.9 | 0.3 | 6 | 5.0 |
| Sample G1 | ||||||
| Manufacture April 2023 | ||||||
| Skins (glass) | 3 | 2700 | 71 | 0.33 | 0.05 | 129.0 |
| Core (epoxy) | 0.3 | 1300 | 1 | 0.3 | 5 | 6.3 |
| Bevel 1 | ||||||
| Manufacture June 2023 | ||||||
| Skins (glass) | 3 | 2700 | 71 | 0.33 | 0.05 | 130.3 |
| Core (epoxy) | 0.3 | 1300 | 1 | 0.3 | 5 | 6 |
| Bevel 2 | ||||||
| Manufacture June 2023 | ||||||
| Skins (glass) | 3 | 2700 | 71 | 0.33 | 0.05 | 128 |
| Core (epoxy) | 0.3 | 1300 | 1 | 0.3 | 5 | 7.5 |
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