HD86766: ANALYSIS (FEM) / BOUNDARY SIMPLIFICATION IS NOT RESPECTED AFTER CATPART IS MODIFIED.

APAR status

• Closed as program error.

Error description

• ANALYSIS (FEM) / Boundary simplification is not
  respected after CATPart is modified.
  .
  SCENARIO:
  .
  1. Open attached CATPart.
  2. Go to Advanced Meshing Tools workbench.
  3. Click Advanced Surface Mesher, select the
  PartBody
  4. In the Global Parameters dialog box provide
  following values:
  - Mesh Type : Set frontal triangle method
  - Element Type: Liner
  - On Mesh tab,
  -Mesh size : 10.000mm
  -Absolute sag : 0.050mm
  -Min Size : 0.100mm
  -Automatic mesh capture : 0.010mm
  -On Geometry tab,
  -Constraint Sag : 0.500mm
  -Angle between faces : 0.000deg
  -Angle between curves : 1.000deg
  -Minholes size : 10.000mm
  5. Click Boundary Simplifications icon
  6. Select Faces tab
  7. On Trap toolbar, click Select Objects by an
  Inclusive Polygon method.
  8. Error Message "Impossible to inactivate Face" is
  displayed.
  Note that the central surface on the pad is selected.
  9. Select the surfaces on right and left of the
  central surface.
  10. Click Mesh The Part icon.
  11. The mesh is generated and it is on all 3
  surfaces.
  .
  12. Go to Part Design workbench; modify the Pad
  size to 25mm.
  13. Switch Back to Advanced Meshing Tools
  workbench.
  14. From contextual menu of Spec tree select
  update all meshes command.
  RESULT:
  The mesh is updated.
  However the surface mesh is present ONLY on the
  central surface. The mesh on the other two
  surfaces is lost.
  .
  .
  EXPECTED RESULT:
  .
  The result at step 14 should be same as the result
  at step 11.
  The boundary simplification should be respected.
  .
  .
  .
  

Local fix

Problem summary

• ANALYSIS (FEM) / Boundary simplification is not
  respected after CATPart is modified.
  .
  SCENARIO:
  .
  1. Open attached CATPart.
  2. Go to Advanced Meshing Tools workbench.
  3. Click Advanced Surface Mesher, select the
  PartBody
  4. In the Global Parameters dialog box provide
  following values:
  - Mesh Type : Set frontal triangle method
  - Element Type: Liner
  - On Mesh tab,
  -Mesh size : 10.000mm
  -Absolute sag : 0.050mm
  -Min Size : 0.100mm
  -Automatic mesh capture : 0.010mm
  -On Geometry tab,
  -Constraint Sag : 0.500mm
  -Angle between faces : 0.000deg
  -Angle between curves : 1.000deg
  -Minholes size : 10.000mm
  5. Click Boundary Simplifications icon
  6. Select Faces tab
  7. On Trap toolbar, click Select Objects by an
  Inclusive Polygon method.
  8. Error Message "Impossible to inactivate Face" is
  displayed.
  Note that the central surface on the pad is selected.
  9. Select the surfaces on right and left of the
  central surface.
  10. Click Mesh The Part icon.
  11. The mesh is generated and it is on all 3
  surfaces.
  .
  12. Go to Part Design workbench; modify the Pad
  size to 25mm.
  13. Switch Back to Advanced Meshing Tools
  workbench.
  14. From contextual menu of Spec tree select
  update all meshes command.
  RESULT:
  The mesh is updated.
  However the surface mesh is present ONLY on the
  central surface. The mesh on the other two
  surfaces is lost.
  .
  .
  EXPECTED RESULT:
  .
  The result at step 14 should be same as the result
  at step 11.
  The boundary simplification should be respected.
  .
  .
  .
  

Problem conclusion

• THIS PROBLEM WILL BE FIXED ON   VERSION V5R20 GA level.
  Additional Closure Information:
  INCIDENT DIAGNOSIS:
  Boundary simplification was not respected if the geometry was
  modified.
  CORRECTION EXPLANATION:
  Due to a defect the modifiations in geometry were not
  correctly recognized and the resulting boundary
  simplification was incorrect.
  The defect is now fixed. After the fix, when the geometry is
  modified and mesh is updated the boundary simplification is
  correct.
  NOTE:
  The boundary simplification should be re-defined to make use of
  the fix. If the old mesh and boundary simplification is used t
  he effect of fix may not be visible.
  .
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  CATIA V5 NT>XP

• Fixed component ID

  569151000

Applicable component levels

• R520 PSN

     UP