Using the Tensor Probe

Important   The Tensor Probe works best on Fault Stability Models. For probing triangle values, a Fault Stability Model is mandatory. You can create a Fault Stability Model with the Discrete Analysis workflow.

When you have results from the fault stability calculation, you can query the faults for stress conditions with the Tensor Probe (model > Fault Stability > Tensor Probe). Fault tri-meshes with dip, dip azimuth, stress tensor, and pore pressure data can be queried to extract values for principal stresses as well as the effective normal and shear stress. Results of the query are displayed in both Mohr Space and a data table.

To use the Tensor Probe to query and interact with tensor data

  1. Open the Tensor Probe form.
  2. In the 3D View, display the fault tri-mesh that you want to probe (it is not important which property you display on the fault). Click on the tri-mesh in the 3D View. Upon clicking, the Selected object and Selected item fields of the Tensor Probe form will populate accordingly. The Selected item field will change name to Selected node or Selected triangle, and show respectively the selected NodeID or TriangleID, depending on whether your Fault Stability Model is in 'Node' or 'Triangle' mode (See Fault Stability Model storage type).
  3. Select the S-NN component of the stress tensor and the associated pore pressure. Based on the selection for the S-NN component, the other components are automatically derived. On a completed Fault Stability Model, these properties are automatically selected from the 'Mapped Stresses' folder.
  4. For the Mohr Space display a friction coefficient and cohesion need to be defined. Either enter constants or check the 'Use' checkbox and select the properties.
  5. Each time you select new properties you have to click the Update selection button (or click in a different location in the view) to refresh the view to reflect the new property.

    6. If you have time steps, the table at the base of the form shows the result for the probed location at each time step. If you activate the Time Animation tool (Workspace > Tools > Time Animation), the table and graph respond to each time step.

  6. Optionally, you can create a point set at the clicked location if you wish to have a data point to reference. The point set is added to the JewelExplorer > Data folder and is given the following name: 'Query [Tri-mesh name] [Node ID]'.
  7. If you wish to print a copy of the Mohr Circle you can click the Print Mohr space button, which will create a high resolution rendering of the Mohr Circle and open a preview for you to review before queuing the print job.
  8. When you have finished, click OK to close the form.