Display Options
The Display Options dialog contains a variety of options for displaying information on the model, and customizing the display of the model and analysis results.
Display Options 
is available in the toolbar, the View menu and the default right-click menu. Many of the most commonly used display options are also available directly in the toolbar, as individual shortcuts (e.g. Stress Trajectories, Deformation Vectors etc.)
In the RS2 Interpret program, the Display Options are organized into the following categories: Stress, Boundaries, Support, Groundwater, Thermal, Decimals, General.
The Display Options include:
- Element Numbers
- Node Numbers
- Bolt Numbers
- Liner Numbers
- Joint Numbers
- Discretizations
- Boundaries
- Bolts
- Liners
- Restraints
- Distributed Loads
- Line Loads
- Stress Trajectories
- Failure Trajectories
- Elements
- Shrink Elements
- Shrink Contours
- Bolt Elements
- Deform Mesh
- Deform Contours
- Deform Boundaries
- Deformation Vectors
- Scale Factor
Thermal
- Show BC (boundary conditions)
- Heat Transfer
- Heat Transfer values
- Show Temperature grid
- Show Temperature grid values
You will find Display Options to be a frequently used tool in RS2 Interpret; you are encouraged to experiment with all of the options that are available. Many different combinations of options can be applied to the model for many different data interpretation purposes.
NOTES:
- The Display Options dialog works a little differently than a regular dialog. It is known as a "roll-up" dialog, and can be left up on the screen while performing other tasks. The "arrow" button in the upper right corner can be used to "roll-up" or "roll-down" the dialog, without closing it. This allows the user to minimize / maximize the dialog, to keep it out of the way when not needed.
- The dialog can also be minimized / maximized by double-clicking on the title bar of the dialog.
- A "roll-up" dialog is useful when working with multiple views, since the user can apply different options to different views, without closing the dialog.
- Display Options operates on a per view basis, so that if multiple views are open, each view can have its own set of Display Options applied.
- The default Display Options are in effect whenever a file is opened, or a New Window is created.
Element Numbers
The Element Numbers option in the Display Options dialog, will display the number of each finite element as used in the RS2 input and output data files.
When Element Numbers are displayed, they will overlap in dense regions of the mesh. This is normal, use the Zoom Window option to zoom in and make numbers readable.
You may also want to toggle on the display of Elements, when viewing Element Numbers, if you are performing a detailed inspection / troubleshooting of the mesh.
Node Numbers
The Node Numbers option in the Display Options dialog will display the node numbers of the finite element mesh as used in the RS2 data files.
When Node Numbers are displayed, they will overlap in dense regions of the mesh. This is normal, use the Zoom Window option to zoom in and make numbers readable.
You may also want to toggle on the display of Elements, when viewing Node Numbers, if you are performing a detailed inspection / troubleshooting of the mesh.
Note: you may notice that the node numbering begins at 4. Don’t worry, this is correct, and is due to the automatic meshing process, which requires 4 nodes located "outside" of the external boundary. These 4 "invisible" nodes are numbered 0, 1, 2, 3.
Bolt Numbers
Bolt Numbers are used in conjunction with the Graph Bolt Data option, and allow you to associate bolts with their data curves on a graph of bolt data. Note that the bolt numbers do NOT exist in the RS2 files, although they do correspond to the ordering of the bolt data in the RS2 files.
Tips
- The Bolt Numbers are automatically turned ON when bolt data is graphed, so it is not necessary for the user to do this each time bolt data is graphed.
- Bolt Numbers are NOT automatically turned OFF, even if all graphs of bolt data are closed. To clear the display of bolt numbers, the user will have to toggle Bolt Numbers off in the Display Options dialog.
- The location of the bolt number on each bolt is important, as it identifies which end of the bolt corresponds to the end of each curve on a bolt graph. This may seem obvious if pattern bolting was used to install the bolts, however, it becomes more important when individual bolts are added with the Add Bolt option, since the user can enter a bolt starting at either end, which determines where the bolt number will appear on the bolt.
- If Bolt Numbers overlap when displayed, use Zoom Window to zoom in and make the numbers readable.
Liner Numbers
Liner Numbers are used in conjunction with the Graph Liner Data option, and allow you to associate points on liners with the corresponding points on liner data curves. Note: the Liner Numbers are the same as the node numbers along the boundaries (you will see this if you toggle Liner Numbers and Node Numbers on at the same time).
Tips
- The Liner Numbers are automatically turned ON when liner data is graphed, so it is not necessary for the user to do this each time liner data is graphed.
- Liner Numbers are NOT automatically turned OFF, even if all graphs of liner data are closed. To clear the display of liner numbers, the user will have to toggle Liner Numbers off in the Display Options dialog.
- If Liner Numbers overlap when displayed, use Zoom Window to zoom in and make the numbers readable.
Joint Numbers
Joint Numbers are used in conjunction with the Graph Joint Data option, and allow the user to associate joints with their data curves on a graph of joint data. Note that the joint numbers do NOT exist in the RS2 files, although they do correspond to the ordering of the joints in the RS2 files.
Tips
- The Joint Numbers are automatically turned ON when joint data is graphed, so it is not necessary for the user to do this each time joint data is graphed.
- Joint Numbers are NOT automatically turned OFF, even if all graphs of joint data are closed. To clear the display of joint numbers, the user will have to toggle Joint Numbers off in the Display Options dialog.
- NOTE: the location of the joint number on each joint is important, as it identifies which end of the joint corresponds to the end of each curve on a joint graph.
Discretizations
The Discretizations option in the Display Options dialog will display the finite element discretization along the model boundaries. Small crosses will appear at each node location along the boundaries.
Boundaries
The Boundaries options in the Display Options dialog, toggles ON or OFF the display of boundaries (e.g. Excavation, External, Material, Stage and Joint Boundaries). Default is ON, but you may want to toggle Boundaries OFF to view contour plots without boundaries, for example.
Bolts
The Bolts option in the Display Options dialog, will toggle on or off the display of bolts on the model. You may find this useful if the display of bolts interferes with the viewing of data (e.g. contours, yielded elements, etc.) or other elements of your model (e.g. liners, joints, etc.)
Liners
The Liners option in the Display Options dialog, will toggle on or off the display of liners on the model. Liners are indicated by thick colored line segments along boundaries where they have been applied.
Tip
If you are having trouble seeing Liners on the model:
- Liners may be easier to see if you turn the display of Boundaries off in the Display Options dialog.
- If bolts are installed on the same segments as liners, you may also want to toggle the display of Bolts off in the Display Options dialog.
- For maximum visibility, you can always turn off the display of contours in the Contour Options dialog, by setting the contour Mode to Off.
Restraints
The Restraints option in the Display Options dialog, will display all nodal restraints applied to the model.
- A node restrained in both the X and Y directions will display a triangular "pinned" symbol.
- A node restrained in the X direction only, will display a vertical "roller" symbol.
- A node restrained in the Y direction only, will display a horizontal "roller" symbol.
- Non-zero "displacement" values will be represented by an arrow and the displacement magnitudes in the X and Y direction.
In addition, if Infinite Elements are being used to model the external boundary conditions, the Restraints option will show this by displaying arrows along the nodes of the external boundary where the Infinite Elements are applied.
Distributed Loads
The Distributed Loads option in the Display Options dialog, will display all distributed loads you have applied to the model. Arrows represent the direction of the loads and the numerical magnitude is also displayed.
The Scale Factor allows you to scale the size of the load arrows on the screen. The Scale Factor is for display purposes only, and does not affect the magnitude of the loading.
Line Loads
The Line Loads option in the Display Options dialog, will display all line loads you have applied to the model. These are the loads you have added with the Add Line Load option in the Loading menu of the RS2 Model program. An arrow symbol and a numerical value represent the direction and magnitude.
Stress Trajectories
The Stress Trajectories option in the Display Options dialog displays the principal stress trajectories in the form of a long line for σ1 and a short line for σ3. The trajectories are placed and centered at every finite element node.
If a square dot ■appears instead of the stress trajectory symbol, this indicates that conditions are hydrostatic (σ1 = σ3) at that point.
If you are viewing differential data the stress trajectories will show the orientation of the differential principal stresses at each node.
Stress Trajectories is also available in the toolbar.
Failure Trajectories
The Failure Trajectories option in the Display Options dialog, displays the potential failure plane orientations at each node of the finite element mesh. The trajectory orientations are computed from the principal stress orientations and the material failure envelope, as follows.
The program first computes the orientation (principal angle alpha) of the major principal stress for the current stress state (tensor) at a location. For the minor principal stress sigma3 of the current stress state, a value of major principal stress that would cause failure is then calculated. For this point on the failure envelope, the program computes an instantaneous friction angle phi. The calculation of instantaneous friction angle only occurs for non-linear failure envelopes such as Hoek-Brown materials. For Mohr-Coulomb materials, phi is simply the friction angle of the material. The conjugate failure planes are then oriented at alpha plus/minus (45 - phi/2).
Two different symbols are used for the display of failure trajectories, indicating the mode of potential failure - shear or tension.
- Shear failure is indicated by a pair of intersecting lines, oriented with respect to the principal stress directions as described above.
- Tensile failure is indicated by a single line, displayed perpendicular to the direction of maximum tensile stress
NOTE:
- Since the failure trajectories are displayed at all nodes of the mesh, they do not necessarily indicate that failure has actually occurred. They simply indicate the potential failure planes for the current stress state. To view the locations of yielded finite elements select the Yielded Elements toolbar button rather than the Failure Trajectories option.
- Failure trajectories are only displayed for Mohr-Coulomb or Hoek-Brown materials. They are not currently displayed for other material types (e.g. Drucker-Prager or Cam Clay).
Elements
The Elements option in the Display Options dialog, toggles the display of the finite element mesh on or off.
Elements is also available in the toolbar.
Shrink Elements
The Shrink Elements option in the Display Options dialog, will "shrink" each finite element such that common sides between elements are drawn twice and offset from each other. This allows you to check the integrity of the mesh if a problem is suspected. Or it can simply be used as an alternate way of displaying the mesh.
If it is not already selected, the Elements option will automatically be toggled on when Shrink Elements is selected, since the mesh must be displayed in order to view the shrunken elements.
Shrink Elements can be used in conjunction with Shrink Contours if desired.
Shrink Contours
The Shrink Contours option in the Display Options dialog, will "shrink" the contours within each finite element of the mesh. Shrink Contours can be used in conjunction with Shrink Elements, although the two options are independent of each other (i.e. Shrink Contours can be applied regardless of whether or not the mesh is displayed).
Bolt Elements
For bonded bolts (Fully Bonded, Plain Strand Cable or Swellex / Split Sets), "bolt elements" are defined by the intersections of each bolt with the finite element mesh. The Bolt Elements option in the Display Options dialog, will display small yellow cross markers at each bolt/mesh intersection. (If you toggle the display of Elements on, and zoom in if necessary, you will see that the bolt elements correspond to intersections with the finite elements).
You may find it useful to display Bolt Elements when you are graphing bolt data, to aid in interpretation of the bolt graph data curves.
Deform Mesh
The Deform Mesh option in the Display Options dialog allows you to view the mesh with the displacement at all nodes magnified by the Scale Factor. The Auto Scale Factor button will provide a default scale factor, but the user can enter any number they wish for the Scale Factor.
The display of Elements will automatically be toggled on when Deform Mesh is selected.
Deform Contours
The Deform Contours option in the Display Options dialog, will deform the contour plotting on the model, by magnifying the displacement at all nodes by the Scale Factor in the Display Options dialog. Deform Contours can be used in conjunction with Deform Mesh, although the two options can be applied independently of each other.
The Auto Scale Factor button will provide a default scale factor, but the user can enter any number they wish for the Scale Factor.
Deform Boundaries
The Deform Boundaries option in the Display Options dialog, will draw the deformed shape of the excavation and external boundaries. The deformation can be magnified by any amount entered in the Scale Factor. The Auto Scale Factor button will provide a default scale factor, but the user can enter any number they wish for the Scale Factor.
Deform Boundaries is also available in the toolbar.
Deformation Vectors
The Deformation Vectors option in the Display Options dialog will draw displacement vectors at each node of the mesh. This can be a useful supplement to the contour plots, as the displacement vectors show the relative magnitude and direction of displacements on the model.
The Scale Factor allows you to magnify the displacement vectors by any amount. The Auto Scale Factor button will provide a default scale factor.
NOTE:
- If you are viewing contours of X Displacement then the Deformation Vectors option will only display the x-component of the total displacement vector at each node.
- If you are viewing contours of Y Displacement then the Deformation Vectors option will only display the y-component of the total displacement vector at each node.
- For all other contour plots (e.g. Sigma1, Strength Factor, Total Displacement, etc.) the Deformation Vectors option will display the total displacement vector at each node.
- If you are viewing differential data , Deformation Vectors will display the differential displacement vectors (X, Y or Total, as described above).
Deformation Vectors is also available in the toolbar.
Scale Factor
The Scale Factor for deformations allows you to magnify the deformations by any amount when applying the following options in the Display Options dialog:
NOTE: after you enter a Scale Factor, you must select the Apply button if you want to see the results without closing the dialog.
Auto Scale Factor will calculate a default Scale Factor. If this is not suitable you can always enter a Scale Factor.
The Scale Factor for boundary conditions allows you to scale the size of distributed load arrows on the display.