Figure 5
3D rendering of strain reconstructions for WLSQ and GP regression approaches. The top row defines the simulation ground truth as described in equation (55), with each column featuring a different strain component. The surface of the voxelated grain is presented, together with a pulled-out interior spherical cut centred at the grain centroid with a diameter of 50 µm. The corresponding coordinate systems are depicted in the bottom left of the figure. Three separate colormaps have been assigned to enhance contrast for the various fields. However, units of strain remain the same across plots (×10−4). The residual field is defined as the difference between the ground truth and the reconstructed strain field. |