After performing a flexural test, you can visualize the tensor field.
The Tensors tab controls the visibility of the tensors. Some additional options and all the options from the View Controls can also be found in the Visualization Settings dialog. Expand the Visualization Settings dialog either by clicking the gear wheel icon in the bottom right of the Tensors tab or by opening the Visualization tab in the sidebar and unfolding the Data View → Tensors section.
The Coloring can either be set to Main Direction or Shape.
For Main Direction, the main eigenvector is interpreted as RGB, i.e. red, green and blue. An eigenvector for strain or stress is the direction (x,y,z) of the largest principal strain or the largest principal stress, respectively. If the vector is pointing in X-direction, the color is red, if it is pointing in Y-direction, the color is green and for the Z-direction it is blue. For everything in between, the colors are interpolated.
For Shape, the color depicts the shape of the tensor, i.e. the color depends on whether the tensor is mainly linear, planar, or spherical. If the shape is mostly linear, the color is red, if it is mostly planar, the color is green, and if it is mostly spherical, the color is blue.
The figure below (see also Kindlmann, 2004) shows how the certainties () for the tensor shape are computed based on the non-negative eigenvalues of the tensor. For strain and stress, the three eigenvalues are the three principal strains or stresses.
Clip the particle visualization area by selecting a Clip Direction, enabling Clip and moving the corresponding sliders or entering clipping values.
Otherwise, in the Visualization Settings dialog, use the option Data View uTensors uVisibility uClipping, working the same way as described for the structure.
Control the Spacing between the tensors in the three directions. Smaller spacing leads to smaller tensors, while larger values for spacing results in larger tensors.
Otherwise, in the Visualization Settings dialog, use the option Data View uTensors uSpacing.
