HyperView User's Guide

Contour Panel for Abaqus Results

Contour Panel for Abaqus Results

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Contour Panel for Abaqus Results

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The Contour panel in HyperView has contour options for FEA results. The following overview focuses on Abaqus ODB files.

The following options on the Contour panel are applied to the model when you click Apply.

Result type

Select the result type and the corresponding component type that should be used to calculate contours.

Use the first drop-down menu under Result type to select one of the available result types. The options change depending on the currently loaded result file.  Each result type is followed by a letter that indicates the category to which it belongs. An "IP" suffix on the result type name indicates integration point results; no "IP" suffix indicates extrapolated results to the element corner nodes. Global element results are with respect to the global coordinate system and are prefixed with "Global". For a full description of global results, see Supported Tensor Results in Local Coordinate Systems .

(t) indicates a tensor-type result, such as stress or strain tensors.  Refer to the section Supported Tensor Results for additional information.
(v) indicates a vector-type result, such as displacement, velocity, and acceleration.
(s)indicates a scalar-type result. The components and invariants are read directly from the ODB file. Refer to the section Supported Tensor Results for additional information.
(c)indicates complex results.

The second drop-down menu in the Result type section allows you to choose the data component type.  The list of available components is based on the selected result type.  For example:

 

Result type

Component options

 

S-Stress components (s)

Mises, Max Principal, Mid Principal, Min Principal, Tresca, Press, Inv3, S11, S22, S33, S12, S13, or S23

 

S-Stress components IP (s)

Mises, Max Principal, Mid Principal, Min Principal, Tresca, Press, Inv3, S11, S22, S33, S12, S13, or S23

 

S-Global-stress components (t)

vonMises, P1 (major), P2 (mid), P3 (minor), Pressure, MaxShear, Intensity, In-plane P1 (major), In-plane P2 (minor), XX, YY, ZZ, XY, YZ, or XZ

 

S-Global-stress components IP (t)

vonMises, P1 (major), P2 (mid), P3 (minor), Pressure, MaxShear, Intensity, In-plane P1 (major), In-plane P2 (minor), XX, YY, ZZ, XY, YZ, or XZ

 

Displacement (v)

Mag, X, Y, or Z

 

UR-Rotational displacement (v)

Mag, X, Y, or Z

 

 

 

Entity with layers

The Entity with layers option allows you to display a contour for a specified element layer or section point along the thickness of the shell. The contour will be applied to all layers defined in the model. If an element has no layer definition, as in a mass or solid, the contour is also displayed regardless of which layer is selected.

The options that control how layers will be displayed are:

 

Max

Displays the maximum value among the layers for each entity, i.e. maximum tensile stress or minimum compressive stress.

 

Min

Displays the minimum value among the layers for each entity.

 

Extreme

Displays the maximum absolute values among the layers for each entity.

 

Section Point 1

(SNEG, bottom)

Results on layer 1 of the shell elements.

 

Section Point 5

(SPOS, top)

Results on layer 5 of the shell elements.

 

 
Note:Section Point 1 (bottom) and Section Point 5 (top) are always defined by default. HyperView supports all layers defined in the ODB file.

 

For example:

Element 1 Lower = -20, Upper = 10

Element 2 Lower = -5, Upper = 30

Lower layer:

Legend Max = -5, Min = -20

Upper layer:

Legend Max = 30, Min = 10

Min layer:

Legend Max = -5, Min = -20

Max layer:

Legend Max = 30, Min = 10

Extreme layer:

Legend Max = 30, Min = -20

 

 

Use corner data

If corner data is available, the Use corner data option is enabled. If you activate the option, HyperView displays color bands by interpolating available corner results within each element. A discontinuity of the result distribution across element boundaries can be seen.

The Abaqus ODB reader supports element results at POSITION=INTEGRATION POINTS (default), NODES, and CENTROIDAL. The ODB file does not support AVERAGED AT NODES. Abaqus ODB always has results for integration points regardless of the position parameter setting in the output request.

HyperView supports these results with respect to the Display corner data option as follows:

Without "IP" suffix

For example:
S-Stress components (s)

Display corner data on: integration point results are extrapolated to the element corners. This is equivalent to POSITION=NODES in Abaqus.

Display corner data off: integration point results are averaged as the base result of the element. This is equivalent to POSITION=CENTROIDAL in Abaqus.

With "IP" suffix

Display corner data on: integration point results are displayed at the nearest element corners.

Display corner data off: integration point results are averaged as the base result of the element.

Refer to 1st Order Elements and 2nd Order Elements for schematics describing this information. Also refer to Supported Results for 1D Elements.

 

Selection

Before creating a contour plot, you must pick one or more entities from the model. You can do this by picking entities directly from the screen, using the quick window selection, or clicking the Elements or Components input collector and using the extended entity selection menu.  If no selection is made, the contour will be applied to displayed components or elements by default.  See Selecting Entities Using the Input Collector for more information on selecting entities.

 

 

Resolved in

The Resolved in drop-down menu allows you to select the result coordinate system to be used to contour the results. The available options are dependent on the current selection for Averaging method. You can select the analysis, elemental, or global coordinate system as well as a user-defined system. The system input collector is enabled when User System is selected.

The Abaqus part is written according to the guidelines described in Supported Tensor Results.

 

Global System

Transforms to the global system.

(proj: none) indicates that no projection rule is selected for shells.  When a projection rule is selected (using the Projection Rule… button) it is displayed, for example, (proj: y, x).

 

Elemental System

Transforms results to the elemental coordinate system.  In HyperView, the elemental coordinate system is defined by element connectivity, which differs from the Abaqus elemental system, but is similar to the Nastran elemental system.

 

Analysis System

Transforms the results to systems associated with each elements as they are defined in the result file. Because every result in Abaqus has its own system that can change with time, the results can not be populated as a HyperView analysis system. Therefore, the analysis system option is not applicable to Abaqus results and is equivalent to the global system.

 

User System

Transforms the results to a user-defined coordinate system.

This option is available when the results or model file contains a user-defined coordinate system. Click the System input collector to select a system by ID or pick from the screen.

(proj: none) indicates that no projection rule is selected for shells.  When a projection rule is selected (using the Projection Rule… button) it is displayed, for example, (proj: y, x).

Projection Rule

Abaqus uses X as the primary axis and Z as the secondary axis.

 

 

Averaging Method

None

No averaging method is used. Color will be displayed in element-based results, a solid color for centroidal results, or multiple color bands within an element.

 

Simple

Tensor and vector components are extracted and the invariants are computed prior to averaging.

This option is equivalent to the Abaqus/Viewer "compute scalars before averaging" option.

 

Advanced

Tensor or vector results are transformed into a consistent system and then each component is averaged separately to obtain an average tensor or vector. The invariants are calculated from this averaged tensor or vector.

This option is similar to the Abaqus/Viewer "compute scalars after averaging" option.

 

Difference

The difference between the maximum and minimum corner results at a node.

 

Use variation (%)

The relative difference at a node from corresponding corner values with respect to the value range from all nodes in the selected components.

This option is equivalent to the "averaging threshold (%)" option in Abaqus/Viewer, but the HyperView denominator is different.

 

The following options are automatically applied to the model as you enter information.

Display options

The display options change the appearance of the contour colors.

 

Discrete color

Produces discrete color bands on contour plots with distinct boundaries between contour levels.  This option uses a texture mapping capability in your graphics card. If your graphics card does not support texture mapping, the performance may slow down.

 

Show feature lines

Display feature lines for the displayed components. You can set the desired feature angle from the Tools menu, Options dialog, Visualization tab.

 

Interpolate colors

Interpolates the contour colors from the undeformed shape (with a zero value) to the result variable reported from the solver.  If you do not select Interpolate colors, the contour colors remain the same for all frames. This is only applied to modal and static animation.

 

 

 

Legend threshold

Max

Enter the value to be assigned to the highest color in the contour plot. Activate the Max check box to apply the value.

The new value is also changed in the Values section of the Edit Legend dialog.

If a value entered for threshold Max is invalid, it will not be applied and the panel will be updated to reflect the actual state.

 

Min

Enter the value to be assigned to the lowest color in the contour plot. Activate the Min check box to apply the value.

The new value is also changed in the Values section of the Edit Legend dialog.

If a value entered for threshold Min is invalid, it will not be applied and the panel will be updated to reflect the actual state.

 

Multiplier

Enter the multiplier for scaling all the result values.

 

 

 

Edit Legend

Opens the Edit Legend dialog where you can change the legend properties.

Result display control

The following options allow you to manage the result display.

 

Overlay result display

Overlays contour, tensor, and vector results in the same window. If all results are displayed simultaneously, available memory may be affected.

 

Clear Contour

Clears the contour and returns the model to its original state.

 

 

 

Query Results

Opens the Query panel where you can view and export properties and other information related to nodes, elements, components, and systems contained in the active model.