Altair HyperMesh 2022 Release Notes

• Method manager provide options while authoring method template to allow corners and average.
• When created, methods have "Average mode" & "Use corners" options that you can change in HyperMesh for various evaluations.
• Averaging applies to result data types only, not model attributes.

  
  
  Figure 4.

• Result nodal queries (such as displacement) are available and can be mixed with element data (model or result).
  • Nodal results are transferred to element.node value on each element attached to a node.

    No division/average happens.

    • This is valid for displacement results but invalid for nodal forces. Instead, use gridpoint force directly with corner "on".
  • If a model attribute bounded to an element (area/volume..) is run with nodal results, it is spread to each node and a method is evaluated per node (per element).
  • If a result attribute is bounded to an element with a layer (along with nodal result), then the nodal value is spread to each layer and a method evaluated per element.layer.node.
  • If element results have corners (and method has corners "true"), then nodal results can be mixed the with element corner values.
  • If average mode is used, element results are first averaged to node (with or without corners) then spread to node of element (corner) to run a method per element.(layer).node.
  • Whenever element & nodal results are mixed, use the engine enforce system for extraction in Global to keep data consistent.
    • Note that "Analysis system" is usually different for elements and nodes. The back-end engine was improved to support element_nodes and result averaging.
    • A warning message is posted in the Run report. For more information, see the log file.

      
      
      Figure 5.

• Methods can be evaluated on FE elements directly without creation of designpoint and designpointset.
• This is valid if method inputs does not require structural property and if there is no sorting defined that implies aggregation across elements.
• A new option is added to select the system for component extraction.
  • In the event of averaging or nodal result being used by a method, the system will switch to the global system.

  
  
  Figure 6.

• New Split option in Panel & Generic Structural Element detection
  • split by element's property
  • split by element's component
• For panels, the split is performed after topology detection. If 1D are used with shell, then panels are first detected, then split applies to detected panels.

  
  
  Figure 7.

• Run is no longer prevented for designpoints without structural property.
• First ply failure method can now run on panels without structural property.
  • The engine will then collect elemental properties directly to evaluate a method per element.
  • If a structural property is applied, then the assigned property takes precedence over the element's property for all elements in the same panel.

• Through ply types, filament winding simulation data from APA software can be directly imported. Zone based properties per element are no longer used or required.
• Filament winding data is displayed and can be reviewed for each winding angle.
• Models can be directly solved in OptiStruct and post-processed using .h3d data.

Figure 9.

• Line plots for selected results of material, ply, and laminate engineering constants analyses.

  
  
  Figure 10.

• Through-thickness plots for selected load response/failure results.

  
  
  Figure 11.

• "Automatically update sets to mesh changes" feature now available for sets generated from ply realization.

• Wrinkling failure in First Ply Failure method is now supported for Abaqus laminate load response and strength analyses.
• All results can be accessed from one, new consolidated viewer. This includes:
  • Seamless switching between various analyses and result representations (tables and plots)
  • Style enhancements for improved readability of numeric results
• Numerous smaller enhancements:
  • Ply type has been added to engineering constants results
  • Min/max highlighting has been added to the first-ply-failure result table in laminate load response analysis
  • Default position and size cover Model View area

• Laminate and ply edit performance for large models. A workaround is to stack a ply with no shape temporarily in the laminate.
• Detailed thickness review with ply layers of Wound ply type does not take drape data into account correctly. This fix will be in 2022.1.
• Import performance of filament wound models with more than ~150k elements

• Performance of mass calc for models with many laminates
• Laminate realization segmentation error when unsupported element types passed
• Spreadsheet import of multiple sets only tool first set ID in list

• Running laminate engineering constants analysis with n sub-laminates of the same interface laminate would lead to n-times the zones of the interface laminate to be shown in the results. Now they are only shown once.
• Filtering would malfunction for laminate reserve factor for mixed failure criteria (plies and wrinkling) in certain circumstances.
• Load response analysis for laminates with plies of type “Shell to Solid Layer Divider” would crash.

• Any realization without a post script will now automatically create properties and materials dependant on the element in the body of the realization.
• The property option "None" has been removed; it is now simplified to specify a Property/Material or leave it undefined.

  
  
  Figure 12.

• The following realizations have had their post scripts set to No/Skip when created through Controls as they are no longer required:

  Spot Types

  • acm (detached-(T1+T2)/2)
  • acm (equivalenced-(T1+T2)/2)
  • acm (general)
  • acm (shell gap)

  Bolt Types

  • bolt (2 cylinder rigid)
  • bolt (b31)
  • bolt (cylinder bar)
  • bolt (cylinder rigid)
  • bolt (step hole)
  • bolt (threaded step hole)
  • BUSH cylinder
  • hinge
  • hinge (b31)

  Line Types

  • adhesive-hemmings
  • adhesives
  • HC mig weld
  • hexa (adhesive)
  • hexa (RBE2-RBE3)
  • rigid (crbody) HC laser

Figure 13.

• Rebuild is now available post imprinting for better a quality mesh.
• Rebuild is now optionally available for the Washer if it interacts with feature edges to improve mesh quality.
• If a Bolt connector creates a hole during realization, it can now be filled on unrealization.

• Bolt(Metal Clip) has undergone a significant upgrade:
  • The body elements can be changed within the control/connector.
  • Any change in the vector is now remembered locally on the connector with the use of the "Overwrite Attribute" flag.
  • Materials and Properties can now be selected and filtered from a default location.
  • The tower and hole elements are placed in a contact set in LS-DYNA and PAM-CRASH.
• Hexa Imprint (adhesive contact) + Penta Imrpint (adhesive contact)
  • Contact type changed to Shell Edge to Surface in LS-DYNA.
  • Part Set is now default for the Secondary set in LS-DYNA.

• A new mechanism to add HyperMesh information into the xMCF format has been added under the export option "App Data Block". This will export the Connector details including the Connector Controls.
• A new mechanism to add the Realization information into the xMCF format has been added under the export option "FEM Data Block". This will export the element types and references into the FEM Data Block. It will also add the PID of the realization.
• Property Links historically have been converted into Component links when exporting xMCF. This has been reverted and will now directly export the links as Property References.

• "Create New" in the Connector tools now say "Create New/Edit" when controls exist.
• "Create New" now creates a control if there are no controls.
• Double clicking connectors in the Model Browser now filters the Connector Browser.
• Instance links now shown on Attachments in the Connector Browser.

• When repositioning the Move tool manually (via double-click or holding Shift), its designated position will now be honored even when modifying the guide bar selector. It will only reset back to its automatic position (selection centroid) when resetting the selection, or clicking the Align button in the Move Tool microdialog.
• - Click once to reset the move tool orientation to match the global coordinate system (or local system, if assigned). Click twice to also reset its position to the selection centroid (or local system origin, if assigned).
• - Select and assign a local rectangular coordinate system to the Move tool. After a new system is assigned, the Move tool will automatically reposition to its origin.

• Display of maximum node or elements id is supported.
• Text color for no results contour is shown in dark color.

• Element quality failures have been reduced by allowing aggressive node movements for failed elements. This is provided by introducing “Aggressive quality correction” parameter in the parameter file.
• Better body fillet identification to maintain continuity and mesh flow.

• Under Global feature mesh control, “Identify features and mesh” option added. This detects features like cylindrical, fillet faces and meshes them with mapped ISO mesh. Similarly, global washer creation option added.
• Face mesh control updated with Layers option. This helps with creating a specific number of layers on selected faces, either constant size or stretched.

• UID attribute is supported in Comparison and BOM Comparison.
• With new parameter, Comparison will show 100% match if maximum gap between CAD and FE is less than 0.03mm.
• cadtofeapproach is implemented for CAD-CAD and CAD-FE parameter in the config file.
• "skip assembly" parameter is extended to Q comparison.

• New parameter added to filter duplicate intersection reports on symmetry parts.
• Comparison function can be called within Offset function to compare the shape after surface offset.

• Spot comparison outputs matched and unmatched connectors file to the report folder.
• Spot comparison base and variant connectors will have separate report color that can be tuned from configuration.
• Spot weld, missing weld check is improved to avoid detecting false reports near fillets, steps and holes.
• Spotweld missing weld report name will contain Connected link IDs.

• CPS4 and CPS3 elements converted to CQUAD4 and CTRIA3
• FRICTION converted to PCONT, FRICSEL
• GASKET material converted to MGASK, TABLEG
• ROTATION joint converted to ROTATION joint
• CARTESIAN, ROTATION converted to CARTROTA joint
• Nonstructural Mass converted to NSML1
• HEADER in the include file is moved to master include on conversion
• TIMEPOINTS converted to NLOUT, TIME, SET,<NUM>,time, list
• Tags are retained on conversion

• /MAT/PLAS_TAB material converted to MATS1,TABLEMD
• TYPE2 contact converted to TIE contact

• SUPERELASTIC material converted to LAW71
• General Contact converted to TYPE24 OR TYPE25

• MPART(Type=Solid) converted to /PROP/SOLID
• MPART(Type=Shell) converted /PROP/SHELL
• CNTCT33 converted to TYPE7
• GROUP(components) SURF/PART/EXT

Abaqus, OptiStruct, Nastran, NX Nastran, Ansys, Dyna, Pamcrash, Radioss, Permas, Samcef, and ADVC