Altair HyperMesh 2026 Release Notes

Aeroelasticity

No updates were made to Aeroelasticity in 2026.

API and Customization

New Features

Model class methods (Modify and Query functions) are fully documented in the Python API documentation.
CollectionByInteractiveSelection() now accepts a collection object as input allowing you to modify an existing collection, as well as create a new collection object.
Model class method get() signature has been updated to accept an entity class and query string, providing a faster way of retrieving a single entity.
Class representing the Assembly entity type has been added to the hm.entities module.
New Model class methods have been added to provide information about HyperMesh model: hm_info(), hm_info_currentcollector(), hm_info_emptylist(), hm_info_unusedlist().
New classes, functions, and features have been added to the hwx.gui GUI toolkit (for example, Canvas, OpenFileEntry, Toolbar, WebView, and so on).
A new output option has been added to Python Recording allowing the push of recorded code to a Compose debugger session.
The Output Settings dialog in Python Recording provides options to restore the defaults.

Enhancements

Performance of creating collections using FilterByAttribute() has been improved.
A new element entity can be created using the Element class constructor.
Collection class provides custom __str__ method and upon printing a collection object, the information about entity class and size of the collection is returned.
Python Recording adds an increment suffix to all variable names in order to avoid clash with built-in Python functions.
Python Recording captures the assignment of parameters to entity attributes, recording the corresponding parametrize_byentity() and parametrize_bycollection() functions.
Python Recording GUI shows the argument value for all arguments that share the same value definition. Previously, the value was shown only for the first instance.

Resolved Issues

Multiple Model class methods have been updated to correct their argument naming and typing. These changes can affect existing scripts and potentially require script updates. See the Python API documentation for detailed information on the individual methods.
Creating a Model class instance before initializing HyperMesh client would lead to the application exiting unexpectedly. This has been mitigated by introducing additional checks which trigger an error if hm package is being imported in a session where HyperMesh client has not been initiated.
Access to multiple entity attributes has been resolved.

Known Issues

The following known issue will be addressed in a future release as we continuously improve the performance of the software:

In the code recorded inside command.tcl, the line continuation character ( \ ) might be incorrectly placed when splitting the list of IDs referenced in a *createmark call into multiple lines, resulting in breaking the ID range definition. You will need to manually update the syntax to avoid an incorrect ID reference when evaluating the recorded code.
```
# Incorrectly recorded code sample
*createmark elements 1 5-44 49-52 73-76 97-100 154-157 178-181 202-205 242 \
 -249 344-349

# Corrected code
*createmark elements 1 5-44 49-52 73-76 97-100 154-157 178-181 202-205 \
 242-249 344-349
```

Browsers

Enhancements

Numeric Precision in User Interface Widgets: The Precision value preference for decimal display is now applied to the coordinate editor in the Entity Editor as well as to all micro dialogs.
Figure 1.; Inactive editor: Decimal values are shown according to the precision setting defined in Preferences.
Figure 2.; Active editor: Decimal values are displayed with up to 15 digits of precision.
Figure 3.
Enhanced Performance: In the Model Browser, accessing the context menu on the Loads folder is now over 70% faster, even with extremely large models containing up to 5 million entities.
Figure 4.

Resolved Issues

Decimal values were previously truncated in the Entity Editor's Coordinates editor and all micro dialogs.
Selecting Include References caused a segmentation error.
The Set type was not displayed correctly in the Type column of the Set Browser.
Node references to local coordinate systems were not updated correctly in the Reference Browser when references were set for additional nodes.
Changing the response type for optimization responses incorrectly moved entities to the Ungrouped category.
Selecting all loads while in review mode caused performance issues.
Deleting assemblies from the Model Browser triggered an application error.
Updating the Thickness attribute for properties via attribute columns caused performance degradation.
The Entity Editor became inaccessible after using Element Organization to New Component.
The Auto Color feature was recoloring unselected components due to uncleared marks.

Composites

New Features

Post-Processing: For the Abaqus solver interface, mapping section point results to actual plies and their corresponding recovery planes allows much more effective post-processing of results with layers. For details, see the Post release notes.

Enhancements

Composite Stress Toolbox: Composite Analysis Result viewer selection behavior for material and ply engineering constants calculation is now in line with the behavior of other analyses.

Resolved Issues

Composite Stress Toolbox

When deactivating plies/composites in the Entity State Browser, the deactivated plies are no longer used in composite stress toolbox calculations.
Previously, in rare cases with no failure criteria selected in the first ply failure method for load response failure calculations, a failure index was reported regardless. This is now prevented by a different initialization routine.

Known Issues

Composite Stress Toolbox

MATF PUCK3D, TSAI3D, and HASH3 failure criteria only support reading the allowables, but not the additional parameters (W1, W2, W3). Standard set for those parameters for glass fiber and carbon fiber is used as per ESAComp documentation for PUCK. F12 is used for TSAI3D. W1=alpha=1 is used for HASH3D.

Pre-Processing

Performance of laminate realization and graphics shift selection of plies for large models.
FE Absorb Plies produces an incorrect result if input zone properties do not have global names/IDs and there are ply drops on top and bottom layers across properties to be absorbed.
Comprehensive support of LS-DYNA material orientation review is not available.

Connectors

New Features

Attachments

Attachments with RBE3 or RBE3 (stuck node) support weight factor calculation methods (inverse distance, normal distribution, constant value) with the normalization option applied are now available. In the Abaqus solver interface, these new options are available and applied on the constraint entities that are being created.

Point Connectors

The new Weld (Imprint) realization has been added. It is a new type of point connector, and it is supported in the LS-DYNA solver interface. This new realization creates constraints and has imprint capabilities.

Connector types that realize RBE3s now support a new option to set the weight factors equal to a constant value based on your input.

Fastener Connectors

Solid type fasteners now support the following:

The new Pattern 6, which creates a bolt with double-sided head and washers. A preview schematic with all the dimensions is also available.
Figure 6.
The Nastran solver interface. Contacts and pretension definitions are added to match Nastran’s requirements.
Automatic calculation of a bolt’s shaft length and diameter.
New options for refined mesh areas for evaluation near the bolt’s head and shaft length offset based on shell thickness.

Hole type fasteners now support body extensions. Two new options have been introduced to account for the length of the bolt’s head and nut or thread.

The Auto Fastener tool now supports the new "Only two layers" option. This option limits the links to two. The "Only two layers" option facilitates the automatic workflow as it eliminates the need for tolerance fine tuning in cases where only two links are desired.

Clip type fasteners now support new patterns. You can use these options to choose the type of clip you would like to realize the connector on, based on its configuration. Previews of the each pattern are also available.

Line Connectors

Line connector types that realize contacts now support the creation of heat affected zones (HAZ). In particular, Contact, Hexa (Contact), and Beam (Contact) now offer a new HΑΖ option in the controls. For Hexa (Contact) and Beam (Contact), the HAZ option is only available when local contact is selected.

Area Connectors

The new "Auto-trim" option in area controls has been added. When it is enabled, all the areas that fail to find a projection are trimmed from the connector when realizing.

Rigidlnk (midnode): a new type has been introduced for the Radioss solver interface. This type will realize RBODY elements with their independent node located in the middle.

Miscellaneous

A locking capability has been introduced for connectors. With the locking capability, connectors can be realized and locked to prevent them from unrealizing. Already realized connectors can be locked and unlocked on demand. A locked connector is indicated in the Connector Browser with the

icon.

The RBE3 tool now supports weight factor calculation methods. These include the inverse distance and normal distribution with normalization options. An option to set the weight factors as a constant value has also been introduced. These options are located in the tool’s guide bar options menu.

A new option to organize the RBE3s manually has been introduced for the RBE3 tool. Using this option, you can use the guide bar to choose the component or part (only for the Abaqus solver interface) and where the created RBE3s are going to be stored.

Enhancements

Attachments

The Auto Attachments and Auto Connect tools have been introduced as satellite options on the Connectors ribbon. These tools can be used to create attachments based on hole recognition and connect them automatically.

Creating attachments without an assigned control is no longer bound to holes. Attachments can now be created on arbitrary locations. This improves performance and facilitates attachment creation.

Point Connectors

Spring (rigid) type fasteners have been enhanced so that the realized RBE3 elements attach to all nodes of second order elements instead of only corner nodes.

Fastener Connectors

The Colinearity option has been relocated from the Preferences options to the Hole type control. This way it can work locally on the connector level instead of globally.

Line Connectors

Seam Quad:

Previously, connectors with the "Use Extension" option enabled would create a poorly structured mesh. The process has been improved and the resulting mesh is well structured.
Snapping options have been added to the control. As a result, fine tuning the realization near free edges has been improved.
Automatic weld recognition has been enhanced to identify cases with mixed T and L welds.
The control has additional LTH and LTV options for weld size dependent realizations. In particular, the "t1/2+wh" and "wh" options have been introduced for LTH and the "wv" option has been introduced for LTV.
Realizations have been improved to be able to realize tabs and slots use cases. This additional logic also supports imprinting and HAZ creation.
Figure 11.

Figure 12.

Miscellaneous

The connector state icons have been redesigned to enable more intuitive workflows and improved accessibility.

The default XML format when saving a connector representation has been updated from XML2.0 to xMCF.

The "Consider only selected or displayed for absorb" connector preference option has been added. This option is enabled by default. When the option is enabled, only the elements manually selected and/or displayed will be considered for connector absorption. In the case of missing elements, either from the realization or the links, the absorption will fail. This option results in better performance, but requires a correct setup. When the option is disabled, the entire model will be scanned; thus, greater flexibility is achieved at the cost of performance.

Resolved Issues

The Seam Quad control has been fixed so it does not show any HAZ related options when the Connectivity option is set to imprint/no HAZ.
Seam Quad line connectors that were shaped as closed loops are now fixed and the realization issues have been addressed for this use case so that the realization is successful.
Shape type attachments have been fixed so their interface node ID respects the Include’s ID range when they are realized, if applicable.
The "Ensure Projection" option for point, line, and area connectors has been fixed to equivalence coincident nodes.
The "Update" option now applies only to realized connectors or realized connectors with post errors.
Hexa (Contact) area connectors in the Radioss solver interface have been fixed to use PENTA6DG elements. Property-element incompatibilities have been fixed.
An outdated connector XML text block is no longer written in the solver deck file during export.
Issues with exporting connector files using xMCF format have been fixed. Export now should work as expected for all solver interfaces.
During solver deck export, redundant warning messages are consolidated into one for cases when files contain connectors with incorrect pitch-to-length values.
Unsuccessful realizations of fasteners that link attachments resulted from applying scenarios are now resolved. Now, when using the apply all option from the Scenario Manager, attachments will be first in the queue followed by connectors.

Design Explorer

New Features

Envelope Response: A new envelope response is now available for displacement responses. When selected in the microdialog during the response creation, the envelope response will report the maximum displacement value for each selected node across the entire exploration.
Figure 17.

A new Envelope Response tab in Results Explorer will report the response values, and a corresponding envelope contour can be displayed.
Compliance Response: A new compliance response is now available for explorations using OptiStruct as a solver and can be created via the Mass/Volume Response tool.
ExpertAI: ExpertAI, previously only available within Results Explorer, is now also available as a standalone tool and can be used to reference both Design Explorer and external explorations. Now it’s possible to open and use DOEs and optimizations which may have originated outside of Design Explorer.

Enhancements

Generative Design: The Generative Design workflow can now support multiple design spaces simultaneously. Previously, you were forced to select a single design space for concept generation.; The draw direction and symmetry design variables have been updated to allow quick creation of primary planes in both positive and negative directions. Previously, only positive directions were supported. Others needed to be manually created.
Replicate Design Variables: Multiple replicate design variables can now be created at the same time by selecting multiple lines. Previously, only a single line could be selected, so replicate design variables had to be created one at a time.; Replicate design variables can be created by selecting nodes. In this special case, instance numbers will be automatically selected as 0 and 1 and cannot be changed.; For doublers and bulkheads, attributes of instances can now also be made variable. Previously, only the number of instances was variable and all properties were fixed.
Connector Design Variables: The Weld Length and Break Length attributes, which are available when a connector’s Skip Welding attribute is selected, can now be considered when creating connector design variables.
Miscellaneous Enhancements: Nominal runs are now optional. You how have the ability to select whether or not to include a nominal run in your exploration.; You are now prompted when opening a model containing explorations if the study path does not match the folder containing the opened model, and the path is automatically reconciled if desired.; Exploration evaluation now occurs in a separate thread, so you can close your HyperMesh session during evaluation if desired.; More interactive feedback is provided for failed exploration runs. By moving the mouse over a failed exploration run, error information will be displayed.; Other miscellaneous performance improvements have been done.

Design Space

Enhancements

Exoskeleton: Improved the mesh quality/aesthetics and removed duplicate 1D’s.

General

New Features

Selection

Feature angle based selection is now supported for surfaces and lines in the user interface. The following new selection methods are available in the Advanced Selection dialog and the “Alt” selection switcher:

Surface > By Face
Surface > By Edge
SurfaceBy Limit
Line > By Edge

Enhancements

Selection

The All selector defaults to “Parts” if the object is organized in a part, and only falls back to “Components” if there is no part associated to it.
Selection conversion from Element or Node to Parts and vice versa is supported. The microdialog positioning has been adjusted to facilitate performance improvements with model manipulation in contexts.
The microdialog appears offset from the mouse location during selection. When appending a selection with more entities, the microdialog only moves if the new selection is near the microdialog, then it will re-offset itself to ensure it does not interfere with the selection.

Resolved Issues

An issue specific to Windows 11, wherein the HyperView Load Model panel, in some cases, would not properly update with the file name in multi-window pages involving both HyperMesh and HyperView windows.
Keyboard shortcuts were not working after coincident picking selection.
An issue where Selection “By Type” was not possible for FE Geometry models.

Known Issues

File > Open/Save dialogs and Message dialog:
- There are inconsistencies seen in the appearance of the following types of dialogs:
  - File > Open
  - File > Save
  - Message dialog
- Based on the available file extension filters in the File > Open/Save dialogs, and how those dialogs or a message dialog are opened, the appearance/style of the dialog can differ from other instances of those dialogs.
- Additionally, some of these dialogs can go behind the main application when you click elsewhere in the application, requiring you to bring them back to the foreground or reposition the application.
- Example showing the different versions of the File > Open dialog:
  Figure 20.
The HyperMesh session can freeze if you open the File menu while the Import Options dialog is launching (but before it is displayed). If this happens, switch to another application and then return to HyperMesh to resolve the issue.
When HyperMesh is launched by double-clicking on a session (MVW) file with multiple pages, in some cases, not all pages will be present in the HyperMesh session. To avoid this, launch HyperMesh via the Start menu or command line and load the session file from within HyperMesh via the GUI (menus, ribbons, and so on) or drag/drop.
Occasionally, a new page created using the Session Browser context menu, accessed by right-clicking on a page in the browser tree, is not reflected in the page navigation tool. This can be avoided by creating new pages using the page navigation tool or by ensuring that the browser context menu used to create the new page is accessed via right-clicking on blank space within the browser tree area.
In dark theme, thick white lines are seen between windows in multi-window layouts.
In multi-window layouts, longer guide bars may be truncated. If this happens, resizing the graphics area to be wider, or expanding the window so that the guide bar is able to draw completely when it's accessed, resolves the issue.
On Linux, if a post client (HyperView, HyperGraph, MotionView, and so on) is closed with the Session Browser closed, an application error is seen upon relaunch and the Session Browser will not draw properly. Clicking through the error messages, closing the browser, and reopening it via the View menu resolves the issue.
In some cases involving multi-monitor setups, if a browser or dialog is dragged from one monitor to another, associated context menus can appear outside the browser/dialog, potentially even on the original monitor.
When running in a NICE DCV environment, there are drawing issues with the Toolbelt and Advanced Capture when using older versions of NICE DCV.
After switching from HyperMesh to one of the post clients (HyperView, HyperGraph, and so on), certain function keys not used as shortcuts in the clients can either display a HyperMesh secondary ribbon with blank icons or move out of the idle context. If this happens, switching to a context available within the client and then exiting the context resolves the issue.
Message Center messages are still displayed, even if Show pop up messages is set to Never in the Preferences dialog.
When the HyperMesh client API (in other words, Model methods) returns an error, an extra error message is printed in the console: OSError: source code not available.
It is not possible to increase/decrease the font size in the Python Console using Ctrl+scroll wheel; instead, use Ctrl++/Ctrl+-.
When trying to use Ctrl+c to copy selected text in Altair CoPilot, a floating panel appears instead. To copy text, right-click on the selected text and select Copy from the context menu.
When cutting a page from the Session Browser or performing the action via the page navigation tool context menu, a message is displayed, indicating that the HyperMesh window and its data will be discarded. This is misleading, as the page has been “cut” instead of deleted. It can be pasted and therefore, the data has not been discarded.

Geometry

New Features

Sketch: The Image Plane tool has been added, which supports importing JPEG, PNG, BMP, GIF, and TIFF files to create sketches with tracing.; The Slots tool has been added for creating slots using various methods.

Enhancements

Sketch: New spline algorithms with local interpolations are now supported.; The Offset tool now supports offsetting splines and ellipses.; The *sketch edit command has been enhanced to create/update/delete different types of sketch indicators.; The performance of realizing lines/surfaces for large models has been improved.

Ruled Tool: The Ruled tool now supports surface/mesh creation between lines and nodes.; The Ruled tool nodes selection has been enhanced to accept close loop selection.
Topology: The auto color mode option has been added for topology tools.; The Project tool now supports projection of topology points.
Import Updated CAD Files: Importing updated CAD files now uses the option from hm_getoptions.
Copy and Paste Lines from an FE Geometry Surface: Copying and pasting lines from an FE geometry surface is now supported.

Resolved Issues

Issues with numeric precision truncation in the geometry and meshing tools have been fixed.
The Ruled tool connectivity issues have been fixed for various combinations of CAD and FE geometry.
The robustness and performance have been improved for the Ruled, Patch, Stitch, and Cross Extend tools.
Sketch: performance issues with realizing lines/surfaces for large models have been resolved.
Sketch: issues with parametric section, linear pattern, and updating intersection plane have been fixed.

Meshing

New Features

Solid Topology Editing

Automatic mesh update is now available for CAD + mesh and FE geometry when topology editing 3D solids.

Solid topology editing is now supported for the following:

3D tetra mesh and 3D tetra mesh with a 2D skin
First order for CAD + mesh and FE geometry
Second order CAD + mesh

Solid topology editing now requires full association of the nodes to the geometry.

Enhancements

Box Trim

The overall performance has been improved.

Mesh quality has been improved at trim boundaries.

Box calculation has been optimized for accuracy.

Handling of 1Ds and solid elements at box trim boundaries has been improved.

Midmesh

Automatic midmesh extraction now assigns attributes to midmesh surfaces, which enables faster alignment and easier cleanup.

The following new alignment methods have been added for more efficient midmesh adjustments:

Middle
Edge Align
Plane
Cylinder
Offset
Fuse
Copy

FE Geometry

Curvature based is the new method to generate topology from FE geometry. It uses curvature analysis to detect and trace surface features by evaluating how sharply the model bends. Areas with low curvature are treated as flat, while high-curvature regions are examined using principal directions to generate smooth, meaningful lines. It is controlled by three options:

Edge feature angle
Vertical filter
Parallel filter

Resolved Issues

Some bugs were resolved which has improved meshing compatibility with embedded 1Ds.
Some bugs were resolved which significantly enhanced the performance of Element Quality Color mode.

Model Build

New Features

Features Support in Part Representations: Features are now stored directly in part representations.
HyperMesh Part Metadata Support on Solver Deck Import/Export: Part metadata can now be optionally imported and exported with solver decks.
Figure 21.
Representation Overlay: The Representation Overlay feature can be used to superimpose a second representation as an overlay onto a current (session’s) representation and inspect their differences.
Subsystem Configuration Table View: A new view has been added that provides a clear overview of included and excluded subsystems within a configuration. This makes the creation and the management of configurations easier.
Seamless Data Management - Save to PDM: Seamless Data Management – Save to PDM is now supported for subsystems, making it easier to manage and organize complex assemblies.

Enhancements

PDM Live: Support has been added for query pagination, enabling efficient handling of large query results.
Parts: The Delete part contents option has been reintroduced when deleting parts.; Curves and tables associated with properties, and materials defined via property attribute tables, are now retained in part representations.
Composite Entities in Part Representations: A warning has been introduced when shared laminates across parts are detected.
Figure 22.
Subsystems: Subsystem instancing has been improved with the introduction of the Instance Sync and Instance Break options.
Library: Curves and failure criteria are now saved along with material to the local material library.; New commands for library-related actions have been introduced both in TCL and Python.
Property and Component ID Logic: In models where the PDM PID is not assigned, the component and property IDs auto-generated during creation of representations are now assigned a value of Part ID x 10. This allows for more independent ID assignment and avoids most cases of ID clashes that can occur with multi-thickness parts.
Model Update: Reports, tables, and naming conventions have been improved to provide clearer information and facilitate easier interpretation of results.
Section Manager: HyperBeam has been fully replaced by Section Manager. The benefit of using Section Manager is the direct access to the actual model and the ability to see section updates in real time.
Figure 23.; Section Manager now supports all section types. All sections are now sketch based and sketches are automatically absorbed if read in from an external source.
Figure 24.; The new Disconnected attribute has been added to the Beamsection entity. This is critical for error checking sections that are open by filtering and reviewing sections in browser. Error check captures warping function and shear center computations.

Model Verification

New Features

Manufacturing Check

The Manufacturing Check option has been added to the Verification Browser. Manufacturing Check detects the following issues on sheet metal CAD parts:

Nut bolt seating surface
Stud seating surface
Electrode interference
Spot weld surface area
Spot weld pitch
Spot gun interference
Arc weld torch interference
Fillet radius
Trim line radius
Hole pitch
Hole size
Hole size of nut bolt
Corner radius of oblong designed hole
Distance trim line hole end
Part interference

The detected issues are summarized in a PowerPoint file.

Figure 37. Corner radius of oblong designed hole

Enhancements

Support for 3DXML data in all functions.
You can now read material, thickness, and weight from 3DXML data.
"Import ANSA comments" can be controlled from a configuration.
Select "ON/OFF all" simultaneously checks items in the configuration file (spot weld, connection, and manufacturing checks).
Material ID or Name is now displayed in the Comparison Excel report.
Assembly image slides for 0-30, 30-90, and 90-100% are added to see all the partial, unmatched assembly images.
Partial Meshing Patch Area% is now configurable with a configuration file.
The Comparison "AI-approach" option is improved to find the closest part first, followed by the surrounding parts.
The Model Build function extracts a connector from stud and NUT CAD data, similar to bolt.
The MBLD Match function aggregates a 3D solid from a base surface if it is in a single part.

Resolved Issues

Comparison for multiple variant parts points to the same source in the comparison.
Comparison Report button: Click opens an old PowerPoint report.
Comparison in partial mesh: Free edges were seen in the partial mesh output.
Comparison in partial mesh: Session occasionally becomes unresponsive during a partial mesh.
Python file: Error appears in a network installation.
User profile: Sets the correct profile for comparison for the selected FE input file.

Morphing

New Features

New Shape Visualization: Shapes are now drawn as transparent mesh instead of vectors.; When you create a shape, a transparent mesh is drawn, which corresponds to the perturbation of each node associated with that shape. The transparent mesh signifies the position of each node after applying the shape.
Figure 40.

Figure 40 shows an example of a shape drawn as transparent mesh on screen.
Review Shapes: Shape entities can now be reviewed by activating the Review (Q) functionality. Shapes will be drawn with the highlight color when in Review mode and everything else will become transparent. This is especially useful when examining shapes that are inside the original mesh.
Figure 41.

Figure 41 shows an example of a shape in Review mode (Q).
Important: Any nodes that move less than 5% with respect to the maximum node movement associated with that shape will not be drawn on screen as transparent mesh. This is done to focus the shape visualization on the moving nodes and to increase performance for shapes that encompass the whole model (for example, morphing with kriging and volume morphing).

Enhancements

Miscellaneous: Morph constraints can now be created by selecting FE geometry surfaces.; The Morph Constraint ON option now supports selecting multiple surfaces.; Free Morph: the automatic population of anchors and morph area is now triggered each time the Automatic check box is selected.
Performance Improvements: Record Shape: performance has been improved.; Proximity Morph: interactive morphing is significantly faster when you morph with nodes, faces, or edges. The effect is more profound with bigger models.; Volume Morph: performance has been improved when creating 10.000 or more volumes using the sweep method.; The performance has been improved when mapping to geometry.

Resolved Issues

The Non-Linear Explicit morphing method now works properly.
The Linear Static morphing method now works properly.
Models no longer occasionally crash after remeshing post morph.
Models no longer occasionally crash after deleting morph volumes.
Models no longer crash after mapping elements to lines using the kriging method.

PhysicsAI

New Features

Automatic Vector Extraction: PhysicsAI can now automatically parse vector data contained in .out or .pch files with the same name and stored in the same subdirectory as the .h3d files used during dataset creation.
Figure 42.; Depending on the file extension used, the nomenclature used for the extracted vectors is out {Type}–{Requests}-{Components} or pch {Type}–{Requests}-{Components}.

Enhancements

Migration to Pytorch: PhysicsAI now uses Pytorch. All the required libraries are packaged as part of the installation. GPUs are automatically detected and used.

Batch Utility Moved to Common Components: On Linux, the location of the batch utility has changed from <install_location>\hwdesktop\hw\eds\linux\edspy.sh to <install_location>\common\eds\linux\bin\linux\edspy.sh. On Windows, the location has changed from <install>\hwdesktop\hw\eds\bin\win64\edspy.bat to <install_location>\common\eds\win64\bin\win64\edspy.bat.

Plots

Enhancements

Plotting enhancements:

From the Results Browser context menu, use the Plot Control option to plot charts.
Create charts through the graphical selection of nodes or elements.
When saving a session, an option has been added to save chart layouts.

Chart Manager enhancements:

You can now plot derived load cases.
Multiple windows and pages are dynamically supported during plotting.
Axis labels are now available when plotting charts.
For the Direct Input table input type, copy-paste functionality has been added for columns.
HM tables, in addition to the existing support for Matrix Browser tables, are now supported.
Performance enhancements have been made to handle a larger number of charts.

Resolved Issues

Issues with the Chart entity.

Known Issues

The following known issues will be addressed in a future release:

The Chart entity is only supported in the Abaqus, ANSYS, Nastran, and OptiStruct profiles.

Post

New Features

Abaqus Ply Matching for Composite Post-processing

Ply matching allows for effective post-processing of composite results, as particular plies can be selected consistently instead of looking at section point results, which might involve different plies for the same section point. The naming convention includes:

Plyname_TOP/MID#/BOT for composites
SHELLLAYERS_TOP/MID#/BOT for metallic shells

Plot Controller Workflow

The Plot Controller workflow now includes the options to switch between “By SectionPoint” (traditional option) and “By Layer”.

Result Query and Matrix Browser Support

The Result Query and Matrix Browser are now supported via a new option in the Preference dialog. From the File menu, select Preferences > HyperMesh > Post > Organize Abaqus SectionPoint by model layers.

Enhancements

Random Response Dialog

Support for the following interfaces and result files have been added:

Nastran: OP2, XDB
Abaqus: ODB
ANSYS: RST

An option has been added to use charts (only from direct input) and curves created in a HyperMesh session as PSD curve inputs. To access this option, go to the Random Response dialog > Input PSD Curve From > Curve or Chart
Default file location for the input files of the model file if the model file is imported in the session.
A filter has been added to sort by name or ID in the Subcase and Results dialog.
4K resolution dialog enhancements have been added.

Safety Report Manager

New Features

New Modules

EuroNCAP FAR Side Occupant Assessment.
ADR Description (part of Seat load cases).
ISOFIX (part of Seat load cases) is now available.

New Features in Existing Modules

Injury metrics for Humanetics Body Model (HBM-Connect) as part of Front impact - EuroNCAP regulations.
The Frontal impact > IIHS > ODB module now supports:
- Second row left occupant injury calculations.
- DIAdem files for physical test data.
Contour Plot module is enhanced to support FLD plot creation.
Contour Plot module can now create Derived Results on demand and apply them as a contour.

General New Features for the Safety Report Manager

Perform curve comparison across multiple iterations (CORA tool).
Append or Overlay the results and the slides in the PowerPoint PPT report during the overlay scenario.
Apply user-defined reader settings while loading the Radioss and LS-DYNA results.
Run custom scripts within the framework.

Enhancements

Contour plot and Animation: New modules are updated to read and apply custom legend styles.
A new HyperGraph default file is now supported specifically for an overlay scenario. It allows you to control the curve legend attributes, such as visibility and legend position, during the overlay process.
A new HyperView default file is now supported specifically for an overlay scenario. It allows you to control the curve legend attributes, such as visibility and legend position, during the overlay process.
Postscript functionality is enhanced with a new option to change the line style per layer from the session files loaded in HyperGraph.
Luggage Retention module is updated to capture animations (MP4 format) when generating the report.
Loadcase Description module is updated to take additional inputs for Pulse/Load and Dummy/Test equipment.
Energy Dissipation module is enhanced to include a summary table for each run containing Clip 3ms and 80g values.
Supports DIAdem (*.dat) files for physical test data.
Time step information is now displayed in all animations slides.

Resolved Issues

Contour plot > Effective Plastic Strain missing layer information issue.
PPT slide titles not aligned on the left.
Plotting pulse curves for seat load cases.
Tracking system settings in the Measure Plot module.
Element selection issue in the Energy Dissipation module.
The Excel limitation of 32767 characters per cell when saving the Safety Report Manager configuration file has been resolved.

Known Issues

The following known issues will be addressed in a future release as we continuously improve the software:

Input validation check is not supported for Battery Section Force and BOM modules.
Load Path, Run Statistics, and Weld Failure modules, as well as input validation check functionality, is not supported for Radioss and PAM-CRASH solvers.

Safety Tools

New Features

Generic Impact Workflow

This tool is available in Radioss, LS-DYNA and PAM-CRASH profiles, allowing:

The definition of impact points on any type of structural parts. The creation of impact points can be done by three different methods:
- Manual selection of locations on the graphic.
- Import of impact locations defined in a .csv file.
- Automatic creation of a raster or grid of points on a user-defined plane and projection on the surface to impact. For example:
  Figure 44.
The automatic positioning of any type of impactors following one of the positioning logic Normal to Target or Target/Angles.
The automatic export of ready-to-run solver decks. The logic of export of the solver decks follows the same logic used in other Safety Tools such as the IP Impact tool.
The example below shows multiple impact simulations on a door-trim using a spherical impactor:
Figure 45.

Enhancements

Seatbelt Tool: Radioss profile: Creation of /SLIPRING/SHELL is now available from the Seatbelt tool via the Slipring 2D context menu option on control point.; Radioss, LS-DYNA and PAM-CRASH profiles: Creation of full-meshed slipring is enhanced, using an embedded simulation for robust and high quality results.
Figure 46.

Resolved Issues

IP Impact Tool: CSV files are now correctly exposed for selection for the creation of points with Testlab method.

Skeleton Modeling

Enhancements

Auto-Offset Tool: The Auto-Offset tool now supports Member Joints input.

Member Creation and Absorb: Member Creation and Absorb now generate sections perpendicular to the line profile.

Joint Creation Performance: Joint creation performance has been improved when geometry is the input.

Skeleton Environment Workflow Help: The workflow help has been improved within the Skeleton environment.

Resolved Issues

The crash while performing line extract with a small resolution has been resolved.
The slowdown when entering the Absorb tool has been resolved.
The crash when using Section Cut with the Section Cleanup option enabled has been resolved.
Deleting multiple joint legs in a single operation no longer deletes the related elements.

Solver Conversion

Enhancements

Abaqus to OptiStruct Conversion: CLOAD(MOMENT), when referred to the local coordinate system (LCS), is converted to MOMENT.
LS-DYNA to OptiStruct Conversion: ELEMENT MASS PART is converted to NSML.; SECTION SHELL is converted to PSHELL(Explicit).
Ansys to Abaqus Conversion: Material Plastic Strain is converted to *PLASTIC.

Task Manager

No updates were made to the Task Manager for 2026.

CAD and Solver Interfaces

Abaqus Interface

New Features

New context support for creating rigids and RBE3s.

Enhancements

The pre-tension section in a group entity now allows you to select and define a follower load option.
A new model checker has been added to detect long names (beyond 80 characters) for solver-named entities.
Introduced the selection of a property when creating a set segment with *SURFACE, TYPE=ELEMENT. This allows you to create set segments based on the element set used for property definition.

Resolved Issues

The Entity Editor has been improved for the Abaqus beam element.
The Surface Interaction keyword is no longer visible in the Property entity for Abaqus/explicit.
Set segment normal was reversed upon Import/Export in the Abaqus 2D profile.
Transformation of a nodal DOF using sets now works properly.
Issue with the API not creating a distribution table and orientation.

ANSYS Interface

Enhancements

RMODIF Card Supported

Support for reading modified real constant sets.

DMOPT

Supported in the load step entity.

RSTCCONTROL

Controls whether element single value results are written to the results file. This is supported within the OUTRES card in the load step entity.

SOLOTION

Specifies solution transition options. This is supported in load step entity.

RSOL and MISC

Supported as part of the OUTRES card in the load step entity.

RESCONTROL

Controls file writing for multi-frame restarts.

Analysis Cards Moved

Analysis cards from control cards have been moved to the load step entity based on analysis type.

Static analysis: IRLF, KBCN, NROPT, PSTRES, AUTOTS, DELTIM, NLGEOM, NSUBST, and TIME.
Modal analysis: ALPHAD, BETAD, EXPASS, LUMPM, MODOPT, and MXPAND.
Harmonic analysis: ALPHAD, BETAD, DMPRAT, EXPASS, HARFRQ, HREXP, HROPT, HROUT, KBC, MDAMP, and MODE.
Transient analysis: ALPHAD, BETAD, EXPASS, KBC, LVSCALE, MDAMP, MODE, NROPT, PSTRES, TIMINT, TINTP, and TRNOPT.
Substructural analysis: ALPHAD, BETAD, EXPASS, and MODE.
BUCKLE: BUCOPT, CMSOPT, CRPLIM, EQSLV, EXPASS, IRLF, MXPAND, NEQIT, NSUBST, TOFFSET.
SPECTR: ALPHAD, BETAD, CMSOPT, CRPLIM, DMPRAT, EQSLV, LVSCALE, MDAMP, NEQIT, NSUBST, TOFFSET.

Resolved Issues

Incorrect import for the SECJOINT,LSYS card.

CAD Interface

New Features

Smarter NX Imports: From the Geometry Import Options dialog, choose between two reader options, NX (third-party) and NX (native), when importing NX files, giving you greater flexibility.
Broader CAD Support: Support added for Autodesk Inventor 2026, Siemens NX 2506 via native readers, Siemens NX2412 via third-party, CATIA R35, and SOLIDWORKS 2025.
Stronger 3DEXPERIENCE Integration: Enhanced support for 3DEXPERIENCE 2024x ensures smoother workflows with the latest platform updates.

Enhancements

Faster Imports: Performance issues with certain CATIA V5 files have been resolved for a smoother experience.
Improved Reliability: Fixed import issues affecting certain CREO files.
Up-to-Date Technology: Upgraded to the latest ODA libraries (v26.2) for improved compatibility and performance.
Overall Optimizations: General performance improvements across the platform.
CAD Import Options: Added support for setoption and hm_getoption with persistence throughout the session.

LS-DYNA Interface

New Features

CONSTRAINED_INTERPOLATION_SPOTWELD: CONSTRAINED_INTERPOLATION_SPOTWELD is now available as a point connector type, which supports absorption, imprint, and realization.
Figure 47.
New Generic Impact Workflow: The new Generic Impact tool has been added, which you can use to define impact points on any type of structural parts, automatically position any type of impactors, and automatically export ready-to-run solver decks. For more details, see the Safety Tools release notes.; Example: Figure 48 shows multiple impact simulations on a door-trim using a spherical impactor.
Figure 48.

Enhancements

Contact Penetrations Check Tool

Enhancements have been made in penetration calculation accuracy for SOFT=2 (segment based) contacts and depenetration process performances. The graphs in Figure 49, Figure 50, and Figure 51 show the drastic reduction of remaining penetrations after the depenetration process for contact SOFT=2 for different large industrial models within HyperMesh 2026.0 compared to HyperMesh 2025.1.

ALE Keywords Mapping

LS-DYNA ALE keywords are now all mapped into a single entity, and no more than eight different entities, for cleaner model organization and a simplified future of ALE keywords support.

Enhanced Material Anisotropy Definition for All Anisotropic Materials

Node selection is no longer required to define (X1,X2,X3), (A1,A2,A3), (D1,D2,D3), or (V1,V2,V3) anisotropy axis. It is now directly driven by location selection or direction selection. You can also input each attribute value manually in the Entity Editor.

New Keywords Supported

Support has been added for the new AIRBAG_CPG and DEFINE_CPG_GAS_PROPERTIES keywords.

Enhanced Keywords

The new RESTRT and METHOD attribute values have been added in the FREQUENCY_DOMAIN _ACOUSTIC_BEM keyword.

The new SUBCASE option has been added in the FREQUENCY_DOMAIN_FRF keyword.

The new TITLE option has been added in the CONSTRAINED_SPR2 and CONSTRAINED_INTERPOLATION_SPOTWELD keywords.

Seatbelt Tool

Full-meshed slipring creation has been enhanced using an embedded simulation for robust and high quality results.

Resolved Issues

In SECTION_BEAM, when the QR attribute is blank or equal to 0.0, the value is now maintained on export and not automatically switched to 2.
When creating CONSTRAINED_INTERPOLATION, the default value of independent DOF is now set to 1.
In specific cases, the segmentation error when reading INITIAL_STRESS_BEAM has been fixed.

Nastran Interface

New Features

Rigids/RBE3s context workflows have been added.

Resolved Issues

BCPARA AGUMENT contains an incorrect description in the Entity Editor.
Mass calculation was incorrect for elements defined with PSOLID and MATORT.
Unable to read some HyperMesh comments correctly from BDF files.

OptiStruct Interface

New Features

Rigids/RBE3s context workflows have been added.
Piezoelectric analysis support.

Enhancements

Model check enhancement to check missing MSID or SSID on TIE bulk card definition.

Resolved Issues

DRESP1 for buckling response type export was incorrect.
Incorrect property assignment to CROD elements.
Incorrect import of NLCTRL bulk card definition.

PAM-CRASH Interface

New Features

PAM-CRASH Sets (Group keyword) Migrated to the New Infrastructure

This migration allows you to create and edit sets quickly and efficiently.

The Group keyword set can be directly created without needing to create ‘set of sets’ selecting entities.
Multiple Sub objects can be referred to the Group keyword with different types of entities.
Range selection without upper and lower bounds has been implemented for sets containing nodes, elements, and parts.
SEG and EDG are mapped to the Set Segment.

New Generic Impact Workflow

Use this tool to define impact points on any type of structural part, automatically position any type of impactor, and automatically export ready-to-run solver decks. For more details, see the Safety Tools release notes.

Enhancements

Penetration check with solver output functionality has been extended to implicit solver output, which uses the IRMV=-2 option in contact for adjusting local contact thickness. Support for reading the solver output of contact type 43 (edge-to-edge) has been added.
The new keyword Multi-Block Contact Input is now supported.

Seatbelt Tool: The Full-Mesh Slipring option, which is accessible from the Seatbelt Browser > Create context menu, has been enhanced to use an embedded simulation for robust, high-quality results.
Figure 59.

Resolved Issues

Modular parts MPART/ are now selectable in a penetration check embedded algorithm for checking penetrations and intersections.
Inconsistent extra space in GRP names.
Group keyword order is now maintained in the solver deck.
Previously, when importing RUPMO type 11 with a blank space, FILTER=CYCLE was automatically added. This has been corrected. The blank space is now preserved during import and remains blank upon export.
Export issue for MAT Type 143 has been corrected when the optional card ‘OSR and NDP’ is selected and FILTER, INTERP attributes are set to blank.
Issue with set loosing component selection upon importing an include file with $HMCOMP comment with same ID.

Radioss Interface

New Features

New Radioss 2026 Profile: A new Radioss profile has been added for 2026.
New Generic Impact Workflow: The new Generic Impact tool can be used to define impact points on any type of structural parts, automatically position any type of impactors, and automatically export ready-to-run solver decks. For more details, see the Safety Tools release notes.; For example, Figure 60 shows multiple impact simulations on a door trim using a spherical impactor.
Figure 60.

Enhancements

New Keywords Supported

The following keywords are now supported: /FAIL/FRACTAL_DAMAGE and /GAUGE/POINT.

Enhanced Keywords

The following keywords have been enhanced:

The Icontrol attribute has been added in the following keywords: /DEF_SOLID, /PROP/TYPE6, /PROP/TYPE14, /PROP/TYPE20, /PROP/TYPE21, and /PROP/TYPE22.
New Ifail_so values have been added in /FAIL/JOHNSON.
A new Istrain value has been added in /FAIL/FLD.
A new Pmin attribute has been added in /MATLAW2.
A new Ip=26 attribute value has been added in /PROP/TYPE9, /PROP/TYPE10, /PROP/TYPE11, and /PROP/TYPE16.
RbodyIDs in /PROP/TYPE15 is now a node selector.
The Main_ID2 attribute has been added in /INTER/SUB.
The output variable names in /TH/CLUSTER have been corrected.
New Irem_gap and Irem_i2 attributes have been added in /DEFAULT/INTER/TYPE19.
A new Inacti value has been added in /INTER/TYPE24.
New output variables VX,VY, and VZ have been added in /TH/PART and /TH/SUBS.
The number of mue and alpha attributes have been increased to 10 in the definition in /MAT/LAW42.
The new Seed attribute has been added in /FAIL/ALTER.
The Tension attribute has been updated in /MAT/LAW88.
A new Ikin attribute and Iflag value have been added in /MAT/LAW87.
Multiple new attributes have been added for compaction mode in /MAT/LAW50.
/MAT/LAW2 is now selectable in /MAT/LAW51.
The material selection filter has been updated in /PROP/TYPE11, /PROP/TYPE16, /PROP/TYPE19, and /PLY to allow the selection of all compatible material models.

Seatbelt Tool

Creation of /SLIPRING/SHELL is now available from the Seatbelt tool. Right-click the control point and select Slipring 2D from the context menu.

Creation of a full-meshed slipring has been enhanced using an embedded simulation for robust and high quality results.

Airbag Folder Tool

The following enhancements have been made to the Airbag Folder tool:

New vertical zig-zag folding has been added.
New diagonal tuck folding has been added.
New rolling folding has been added without the usage of a rolling-tool model. Instead, it is driven by user inputs on the tool shape.
The method to define opening in tuck folding has been improved.
Z-translation for simple fold and rolling has been added.
The definition of rigid regions for inflator insertion has been enhanced.

Resolved Issues

Solvermasses defined on a set of assemblies are now correctly considered in mass/COG/MOI calculation.
The termination time value generated by the Engine File Assistant has been corrected.
/FRICTION keywords are no longer detected as unused.
String length to define the stress file name in /STATE/STR_FILE has been corrected to a maximum of 100 characters.
At the end of the Bus Rollover workflow, the curve defining the gravity load is now correctly assigned to the /GRAV keyword.

Common Interfaces

Enhancements

Model Checker: A new “Shared laminates” check has been added, which checks if there are any laminates shared among parts and displays a warning that lists the shared laminates.