Show Analysis Results

Analyze the results to minimize defects and prevent problems.

Results must be available in the Run History before viewing.

  1. On the ribbon, click the Molding tab.
  2. On the Analysis icon, click Show Analysis Results.
  3. In the Analysis Explorer, select a Run, Stage, and Result Type.
  4. Optional: Enable the various Show options to determine what is visible for the analysis.
  5. Optional: Enable the various Callouts options to show analysis results at a point of interest on your model. The callout values apply to the currently selected run.
  6. Optional: Select the icon under Options to view the results as vectors and change the size of the vectors.
    Note:
    • Not all result types can be presented as vectors.
    • You can also activate and deactivate the vector visualization from the menu under the Show heading.
  7. Analyze the run.
    Tip: To see what areas on your model are under the greatest stress, select and drag the results slider. To restore the result slider's default values, click .


Result Types

Results are available for filling, packing, cooling, and warpage analysis stages.

Filling Results

Option Description
Velocity
  • Examine the velocity vectors evolution during the filling of the mold.
  • Click the Show and Options buttons to change to velocity contour fill animation.
Velocity Average View the average velocity of the material through the part during filling.

Note: Available in only in a fast analysis.
Temperature
  • Review the temperature evolution of the fluid entering the mold cavity.
  • Check regions for excessive heating or cooling.
  • Determine the appropriate fill speed for uniform temperature distribution.
Flow Front Temperature Review the temperature at the time of filling.
Temperature (Core) Review the temperature in the central region of the part during filling.

Note: Available in only in a fast analysis.
Temperature (Shear) Review the temperature of the shear region between the part's core and outer wall during filling.

Note: Available in only in a fast analysis.
Pressure Review pressures inside the mold cavity produced during the filling stage.
Filling Time Review the time it takes the material to reach different areas within the part. The filling results can help you determine the best way to fill the part and detect patterns that indicate the potential for incomplete filling, unbalanced flow, weld lines and air pockets.
Density Review the polymer's density over time. Uniform density is ideal for high quality results.
Frozen Layer View the solidified and non-solidified regions of the part during filling.
Air Traps
  • Locate air trapped in the mold during filling due to different flow patterns.
  • Consider adjusting the venting in the simulation.
Weld Lines Locate regions during filling where two flow fronts meet. Such regions may cause structural and cosmetic issues.
Effective Strain Rate Review the polymer's effective strain rate. The polymer's viscosity is a strong function of its strain rate. This result can help you understand the filling behavior of the polymer. Additionally, if strain rate exceeds a certain threshold (different for each material) the polymer may degrade.

Note: Available only in a detailed analysis.
Effective Viscosity Review the polymer's effective viscosity over time. Effective viscosity is a function of temperature and strain rate, and directly affects the material's flow behavior. This result can help you design gate regions for optimal filling.

Note: Available only in a detailed analysis.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Mold Temperature Review temperature variances in the mold.
Fiber Orientation Tensor Review diagonal and cross products results for the tensors. The result predicts the fiber orientation tensor for short fiber reinforced polymers.
  • XX: displays the tensor in the X-direction.
  • YY: displays the tensor in the Y-direction.
  • ZZ: displays the tensor in the Z-direction.
  • XY: displays the tensor on the XY-plane.
  • YZ: displays the tensor on the XZ-plane.
  • ZX: displays the tensor on the ZX-plane.
The solver writes the fiber orientation tensor in a result and ASCII files that you can import into Multiscale Designer for further strength and failure analysis.

Packing Results

Option Description
Temperature Review temperatures during the packing phase. The temperature will decrease due to the temperature loss across the mold walls.
Temperature (Core) Review the temperature in the central region of the part during packing.

Note: Available in only in a fast analysis.
Temperature (Shear) Review the temperature of the shear region between the part's core and outer wall during packing.

Note: Available in only in a fast analysis.
Temperature (Wall) Review the temperature of the part's outer wall during packing.

Note: Available in only in a fast analysis.
Velocity Examine velocity during the packing phase. Velocities will decrease until the fluid stops flowing.
Velocity Average View the average velocity of the material through the part during packing.

Note: Available in only in a fast analysis.
Pressure Consider pressures during the packing phase. These results are useful to know points where the pressure is less than 0 to detect areas prone to suffer a sink mark defect.
Sink Marks Detect surface depressions, usually in the thicker sections of the model, caused by shrinkage during the packing stage.
Density Review changes in the polymer's density over time. Uniform density is ideal for high quality results. This result can help pinpoint the causes of such defects as sink marks and shrinkage.
Frozen Layer View the solidified and non-solidified regions of the part during packing.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Mold Temperature Review temperature variances in the mold.

Cooling Results

Option Description
Temperature Examine the temperature evolution once the mold is totally filled. You can determine the final temperature at which to stop the cooling phase.
Temperature (Core) Review the temperature in the central region of the part during cooling.

Note: Available in only in a fast analysis.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Frozen Layer View the solidified and non-solidified regions of the part during cooling.
Density Review changes in the polymer's density over time. Uniform density is ideal for high quality results. This result can help pinpoint the causes of such defects as sink marks and shrinkage.

Mold Temperature Review temperature variances in the mold.

Warpage Results

Option Description
Displacement Detect folding, bending, twisting or bowing in the molded part, which is usually due to non-uniform cooling. The displacement contour displays how the part is warping so that you can make the appropriate corrective measures to the cooling rate, cooling channel design, or process data.
Element Stresses View stress results for each element in the mesh. This result represents the stress the materials undergoes as the part warps.

Note: Click the menu under Show in the Analysis Explorer to view specific tensors in isolation or in groups.
Grid Point Stresses View stress results for each node. This result will appear smooth compared to the Element Stresses result.

Note: Click the menu under Show in the Analysis Explorer to view specific tensors in isolation or in groups.

View Molding Defects

Fix issues with air traps, weld surfaces, and sink marks.

  1. When the run is complete, click the Show Analysis Results icon or double-click the run the in Run Status window to view the results.
  2. In the Analysis Explorer select the Filling stage, then view the results for Air Traps. This defect occurs when there is not enough venting, and air gets trapped in the mold.
    Note: To fix issues with air traps:
    • Optimize your design to create appropriate gating.
    • Select low viscous materials, which will allow more air to be released.
    • Add proper ventilation.
    • Align your mold properly to help provide ventilation for trapped air.
  3. Next, view Weld Surfaces for the Filling stage. This simulation shows the regions where two flow fronts meet. This defect can occur in parts with a core or insert. If the two fronts that meet have different temperatures, they may not meld completely in the mold because of a temperature gradient.

    Note: To fix issues with weld surfaces:
    • Select a material with a low melting temperature.
    • Increase the injection temperature and speed.
    • Modify the design to obtain a single flow.
    • Increase the melting temperature of the material.

  4. View Sink Mark results for the Packing stage. These defects occur in the thicker sections of the model when the cooling rate and compensation are not sufficient. Rib sections and internal fillets are the most common areas to be affected.
    Note: To fix issues with sink marks:
    • Redesign the thickest section where sink mark is occurring and try to reduce the thickness.
    • During Packing, lower the mold temperature using the Cooling System.
    • Increase the gate size to allow enough material to fill and pack the mold.
    • Increase the holding temperature during the Packing cycle.

Add Callouts to the Results

Call out and review values for a selected result type at points of interest on your model using the callout icons in the Analysis Explorer.

  1. Select the Show Analysis Results tool on the Analyze icon, if not already active.
  2. To create a callout at a point of interest, click in the Analysis Explorer, select a Result Type, and then click a point on your model. Box-select to see the maximum value in an area.
    Note: The callout value applies to the currently selected run.
  3. To automatically create callouts showing where the minimum and maximum values occur for a result type, select a Result Type, and then click .
  4. Optional: To display callouts in a table, click in the Analysis Explorer. Each callout is specific to a selected run.
    • Selecting a row in the table also selects the callout in the modeling window.
    • To show or hide a single callout, in the Callouts table, Name column, click .
    • To show or hide all callouts, in the Analysis Explorer, click .
    • To sort the order of a column in the table, click the column header. Or you can click or to select Sort Ascending or Sort Descending.


    • To add or delete columns on the table, right-click a column header, and then select or deselect a property.