Altair HyperLife 2026 Release Notes

New Features

Selection of Frequency Range in Sine Sweep Fatigue
Frequency range selection is enabled for Sine Sweep fatigue events. With this update, the LoadMap context with Type of Loading: Sine Sweep allows a fatigue event to be defined with a single frequency of interest or a range of frequencies from the imported frequency response results.
Option to Skip Damage Calculation When Stress or Strain History is Requested
The Evaluate context supports the option to only output stress or strain history without calculating the damage for the given Stress Life or Strain Life evaluation. The feature is supported for both session-based or batch evaluations. The option is included in the Stress Strain history output within the Evaluate context > Advance Options.

Enhancements

Updates to Material Selection during HyperLife Batch Evaluation
HyperLife contains the following updates to material selection via batch evaluation.
  • User-defined material XML path to be retained in the RunSetup XML.
  • HyperLife evaluation errors-out if the assigned material XML is not found during batch evaluation.
  • HyperLife evaluation skips the selected part/set if the material assigned is not available in the assigned material XML.
  • Materials from the user-defined material XML assigned in the Run Setup file will not be copied to the HyperLife Material XML part of the HyperLife user-defined Material directory.
Additional Enhancements
  • Performance improvement during solid element evaluation when stress gradient is included.
  • Spot weld fatigue with transient results is extended to Radioss H3D. The support is extended to 1D spot welds only.
  • Improvement to the total evaluation time when the Damage Summary CSV is requested for large entity sets in Stress Life or Strain Life evaluation.

Resolved Issues

  • Strain life evaluation with entity sets using scale and offset in assign material context.
  • Sine Sweep fatigue issue with multiple events and repeat count greater than one.
  • Random Fatigue with nodal evaluation using ANSYS RST results.
  • User warning is provided in HyperLife log file when assigned CSV for stress or strain history is missing.

Known Issues

The following known issues will be addressed in the upcoming release as we continuously improve the software:
  • The FKM Mean Stress Sensitivity dialog in the Assign Material Context contains an issue with numerical precision.

Altair HyperLife Weld Certification 2026 Release Notes

New Features

Assessment Method for Weld and Base Metal Evaluations in Specification Context
The Specification context facilitates selecting either Static or Fatigue calculation via the assessment method. This allows either static or fatigue evaluation with the events created in a load map in a single evaluation.
Single Results Report (CSV) Showing Input Properties and Output Results from Welded or Base Metal Evaluation
HyperLife Weld Certification supports a CSV report containing assigned input properties from the Points context or Material context and evaluated results based on the evaluation domain selected (welded or base metal) into a single file. The CSV report is generated for all elements or nodes that are queried during the Utilization report TXT generation. The report is written to the run directory created during the weld or base metal evaluation. The feature is supported for the following regulations in HyperLife Weld Certification: FKM, EuroCode 3, DVS 1612, and DVS 1608.
Base Metal Fatigue Evaluation is Extended to Parts Modeled with 3D Elements for FKM and EuroCode 3 Regulations
Base metal evaluation with EuroCode 3 and FKM in HyperLife Weld Certification is extended to solid elements. The evaluation considers exposed surface nodes of the solid part. The result files imported must contain corner-data stress for the evaluation as a prerequisite. The feature is supported for OptiStruct, Abaqus, and ANSYS result formats.
Base Metal Fatigue Evaluation of Parts Modeled with Shell Elements is Extended to Nodal Evaluation for FKM and EuroCode 3 Regulations
Base metal evaluation is extended to support nodal evaluation for shell parts. The feature requires corner-data stresses as a prerequisite from the imported result files.
Welded Static Evaluation Extended to Support 3D-3D Welded Joints
Static assessment of welds modeled with solid elements is supported for the following regulations: FKM, EuroCode 3, DVS1612, and DVS1608. The result files imported must contain corner-data stress for the evaluation as a prerequisite.

Enhancements

Static Evaluation for Welds to Display 1D Contour
Master 1D utilization contour is supported for a welded static assessment. The 1D contour reports the worst utilization for all evaluated locations of the weld segment.
Additional Enhancements
  • 3D-3D weld evaluation is extended to Abaqus and ANSYS models that contain corner-data stress.
  • Utilization report TXT and CSV report generate separate files when weld plus unwelded evaluation is chosen as the evaluation domain.

Resolved Issues

  • Base metal evaluation with FKM regulation assigned with constant amplitude loading.
  • Weld property file creating multiple tables upon import.
  • Inconsistency in reporting utilization results from Stress Life evaluation with solid elements.
  • Evaluate context not displaying Target Life for Stress Life - Safety Factor calculation.
  • Utilization values YY and XY interchanged in utilization report TXT upon query of 1D weld element.
  • Inconsistent application error with Stress Life or ERRI weld evaluation with some models.

Known Issues

The following known issues will be addressed in the upcoming release as we continuously improve the software:
  • Weld templates not listed in the specification context.
  • Unable to work with Stress-Life and ERRI session files in HyperLife Weld Certification.
The following known issue will be fixed in a future release as we continuously improve the software:
  • Inconsistency when evaluating solid welds with models containing both Shell and Solid components.

Altair HyperLife Crack Growth 2026 Release Notes

New Features

Support for Strain Life Evaluation to Auto Detect Hotspot Locations for Crack Growth Analysis
HyperLife Crack Growth supports Strain-Life uniaxial fatigue evaluation to auto detect a hotspot for crack growth evaluation. The Hotspot context supports both manual and automatic hotspot creation options. Automatic hotspot detection utilizes strain life fatigue damage results and damage threshold parameters to identify ‘n’ number of user-requested critical locations. The maximum nodes from these locations are then listed as hotspots for crack property assignment.
Support for Direction Angles in Hotspot Crack Growth Properties
“Direction Angles” in the Hotspot context assists in defining multiple directions in the thickness directions at the selected hotspot node. The directions are defined based on angles provided and the plane selected for stress distribution. Each direction is drawn based on the angle calculated from the exposed surface as the reference. From the Hotspot context, right-click and select Hotspot list > Show to highlight the directions defined in the GUI.
Event Contribution (CSV) Output
HyperLife Crack Growth supports CSV file output detailing the crack growth contribution from each event defined in the duty cycle. The CSV file is written to the run directory, post crack growth evaluation.
Result, Contour, and Marker Contexts Supported for HyperLife Crack Growth
HyperMesh Result context and Post options: Contour and Marker contexts are supported in HyperLife Crack Growth. Exposing these contexts in HyperLife Crack Growth allows post-processing imported results and fatigue results from Strain Life evaluation during automatic hotspot detection.

Enhancements

Updates to HyperLife Crack Growth HotSpot Context
Hotspot context supports the following enhancements:
  • Ability to select/deselect single and multiple hotspots.
  • Option to edit multiple hotspots together.
  • Export and import of HotSpotDetails.xml from within the Hotspot context.
  • Option to display the crack direction across the thickness.
HyperLife Crack Growth Result Explorer
HyperLife Crack Growth result explorer is updated to list hotspot plot options and an evaluated hotspot list. Hotspot plot options support “Crack Growth versus Number of Cycles” and “a/b ratio” plots.
HyperLife Crack Growth LoadMap Context
HyperLife Crack Growth LoadMap supports the following enhancements, to assist in defining the required duty cycle in crack growth analysis:
  • Option to reuse an existing event. If you right-click on an event, copy and paste options in the Event window of the LoadMap context are supported.
  • You can now move an event up or down within a duty cycle in the Event Window of the LoadMap.
  • Event and Event Groups can be renamed.

Resolved Issues

  • Application error when evaluating an empty event is resolved.
  • User warning is added when events in the LoadMap or batch duty cycle do not contain any load history channels.
  • Issue concerning the Hotspot context not retaining the hotspot name upon session reload is resolved.

Known Issues

The following known issues will be addressed in a future release as we continuously improve the software:
  • HyperLife Crack Growth does not support Crack Growth evaluation at mid node.