Rocscience International Conference 2025 is going to take place in Sydney, Australia Read more

Search Results

Differential Data

For multi-stage models, data can be viewed in differential format by setting a non-zero Reference Stage in the Stage Settings option. Some important points to remember when viewing differential data are described below.

Sigma 1 and Sigma 3

The DIFFERENTIAL in-plane principal stresses (Sigma 1 and Sigma 3) are obtained by subtracting the stress tensors and calculating the differential principal stress tensor at each node. DIFFERENTIAL Sigma 1 and Sigma 3 are NOT obtained by simply subtracting the stress magnitudes, since this would not account for changes in principal stress orientation at different stages.

Displacement

DIFFERENTIAL Horizontal and Vertical Displacement are obtained by subtraction of Visible Stage – Reference Stage values. DIFFERENTIAL Total Displacement is obtained by subtracting the total displacement vectors.

Other Data

All other DIFFERENTIAL data (e.g. Strength Factor, Sigma Z, Strain, User Data), is obtained by subtracting the Visible Stage – Reference Stage values.

Display Options

All applicable Display Options will indicate DIFFERENTIAL results, as follows:

  • Stress Trajectories will indicate the orientation of the DIFFERENTIAL Sigma 1 and Sigma 3 principal stresses at each node.
  • Deformation Vectors will indicate the differential displacement vectors.

Show Yield

The reference stage affects the display of yielded elements as follows:

  • Finite elements that yielded AFTER the Reference Stage are displayed in red. Elements that yielded IN or before the Reference Stage are displayed in dark red.
  • Yielded bolt elements are displayed in different colours, according to whether they have failed before or after the reference stage, and also whether the bolt element has failed in shear, tension or both. See the Legend for the colour scheme.
  • Yielded liner and joint data is NOT displayed in differential format. The reference stage setting does not affect the display of yielded liner or joint elements.

See the Show Yield topic for more information.

Rocscience logo, click here to return to the homepage Portal Account Portal Account Log In Log Out Home Shopping Cart icon Click here to search our site Click here to close Learning Tech Support Documentation Info Chevron Delete Back to Top View More" Previous Next PDF File Calendar Location Language Fees Video Click here to visit Rocscience's LinkedIn page Click here to visit Rocscience's YouTube page Click here to visit Rocscience's X page Click here to visit Rocscience's Facebook page Click here to visit Rocscience's Instagram page Click here to visit Rocscience's Reddit page Bookmark Network Scroll down for more Checkmark Download Print Back to top Single User Multiple Users RSLog RocFall3 CPillar Dips EX3 RocFall RocPlane RocSlope3 RocSupport RocTopple RS2 RS3 RSData RSPile RSWall Settle3 Slide2 Slide3 SWedge UnWedge RocTunnel3 RocSlope2 BlastMetrix ShapeMetriX Fragmenter TestLicense Commercial License Education License Trial License Shop safe & secure Money-back guarantee