Table 1 Materials and indentation conditions with the loads’ range and valid tests.
Date month/year | Reference | Poisson’s ratio n | Young’s modulus \(E\) (\(GPa\)) | Loads range | \({N}_{b}\) tests |
|---|---|---|---|---|---|
07/2011 | SAE660 | 0.30 |  ≅ 100 | 0.2–10 N | 23 |
07/2011 | Cu99 | 0.28 |  ≅ 120 | 0.2–20 N | 24 |
01/2015 | C27200 | 0.36 |  ≅ 110 | 0.02–10 N | 23 |
