Altair HyperLife 2022.1 Release Notes
New Features
- Haigh Diagram for Material Model
- Haigh diagram can be input for material model in SN Uniaxial and Multiaxial analysis. The material tool is enhanced to input Haigh diagram as manual entry and table import. You can input stress as Stress-Amplitude, Stress-Range or Max stress. The evaluation results are output as Safety Factor.
- Multi Curve for Material Model
- The release enables input of Multi curve for the fatigue material model
in SN Uniaxial and Multiaxial analysis.
- SN Mean Multi-curve: The material tool is enhanced to input material curves for multiple mean-stress values as manual entry and table import. You can input stress as Stress-Amplitude, Stress-Range or Max stress. The input curves can be slope-intercept or XY data format.
- SN R-ratio Multi-curve: The material tool is enhanced to input material curves for multiple stress ratios(R) as manual entry and table import. You can input stress as Stress-Amplitude, Stress-Range or Max stress. The input curves can be slope-intercept or XY data format.
- SN Haigh Multi-curve: The material tool is enhanced to input material curves for representing multi Haigh diagrams as manual entry and table import. You can input stress as Stress-Amplitude, Stress-Range or Max stress. XY data format is supported to input Haigh diagram.
- Material curve for multiple Stress ratio
- SN curves corresponding to different stress ratios can be input on the material tool. The material tool is enhanced to indicate the stress ratio(R) of the input SN material curve. With this enhancement, HyperLife is supporting material curves originating from pulsating tension or compression tests.
- Graphical load comparison
- The load time histories within an event or across events can now be overlayed on a plot window for visual inspection. When the input channel type is Time series, you can select channels of interest and view an overlayed graphical representation.
Enhancements
- Extrapolation of PSD Curve
- For the Random Fatigue calculation (for input loading type: PSD and FRF stresses), you can choose the extrapolation scheme when an x-value input is outside the range of x-values specified on the table. The material tool is enhanced to pick true or false options.
- Indicate top and bottom layers in Shell elements
- The SN and EN tool input options are enhanced to indicate the top and bottom layers in shell elements output by FEA.
- Material XML File
- The material file can now be exported and imported in XML format on material tool.
- Import and Export on Loadmap Tool
- The import and export UI options for Duty Cycle file (*.dcy), HyperLife Load map file (*.xml) and Event mapper file (*.csv) are all moved to a common location on the Loadmap tool.
Resolved Issues
- The issue with sets originating from Abaqus solver profile not being imported in HyperLife is resolved.
- Mean stress correction for Random Fatigue with Abaqus ODB is resolved and working as intended.
- The issue with mean stress correction for Random Fatigue while considering a static subcase is resolved and working as intended.
- Load history plot graphical performance issue has been resolved.
- The Spot weld input options in the Weld tool have been enhanced to input spot weld length units. The issue with incorrect results when spot length units is other than in millimeters is resolved.