Table 1. Standard deviations (SD) on experimental strain and stress evolutions with respect to the FE results, for loadings of 0 N, 25 N and 50 N, obtained for different treatment methods of Laue images: (a) standard − absolute, (b) standard − relative, (c) Laue-DIC. The computed applied load that can be estimated from the measured profile of deviatoric stress is also indicated. Units are µm m−1, MPa and N. The second part of the table gives the residue of equation (15), and pixdev, both in pixel units (pixdev is the average deviation between the measured Laue spot positions and the theoretical ones).
(a) | (b) | (c) | (c) | ||
---|---|---|---|---|---|
Experimental load | SD() | SD() | SD() | SD() | Computed load |
0 N | 50.4 | 44.9 | 27.5 | 3.65 | – |
25 N | 41.0 | 35.9 | 10.2 | 1.51 | 24.3 |
50 N | 41.9 | 34.8 | 9.6 | 1.38 | 51.6 |
pixdev | 0.77 | 0.77 | – | – | |
Residue | – | 0.22 | 0.05 | 0.05 |