Changelog

Version (Released 2020-02-14)

PolyUMod Improvements:

  • This version of PolyUMod supports:
    • Abaqus 2020
    • ANSYS 2020 R1
    • COMSOL 5.5
    • LS-DYNA 10.1 on Linux, 11.0 on Windows
    • MSC.Marc 2019
  • Enhanced Parallel Network (PN) model EType=27 so that it uses 3 bulk modulus terms.
  • Improved the support for Hyperfoam elements in the Three Network Viscoplastic (TNV) model.
  • Several bug fixes and minor improvements.

MCalibration Improvements:

  • Added internal MCalibration solvers for the following material models:
    • ANSYS 3-term Mooney-Rivin hyperelastic model with 9-term Prony series linear viscoelasticity.
    • ANSYS anisotropic hyperelastic polynomial material model.
    • ANSYS anisotropic hyperelastic exponential material model.
    • ANSYS Bergstrom-Boyce (BB) model with Mullins damage.
    • COMSOL linear elastic with a 5-term Prony series.
    • COMSOL Johnson-Cook plasticity model.
    • COMSOL Yeoh hyperelastic with 5-term Prony series linear viscoelastic model.
    • Abaqus linear viscoelasticity with Mullins damage.
  • The internal solver now supports volumetric relaxation for the Abaqus linear viscoelastic models.
  • Added the ability to combine multiple load cases into one average load case. This new feature can be activated from the Edit Many Load Cases dialog.
  • Changed the icon locations in the main window to be horizontal. Made the icons automatically resize to a smaller size if needed.
  • Added a material model selection wizard that can be used to help guide the selection of an appropriate material model.
  • A new dialog box for specifying the optimization method is now shown when the user clicks Run Optimization. This new dialog box provides recommendations for what optimization method to select.
  • Our recommended material models in the material model selection dialog are now highlighted in yellow.
  • The MCalibration solver now does not set the initial stress equal to zero due to thermal stresses. In the previous implementation, the thermal expansion was applied before the stress-strain history was calculated. Now there is a checkbox in the Options dialog that controls if the initial thermal stresses are set to zero or not.
  • The Save Image File Size dialog now has two pre-defined image sizes in addition to the custom sizes.
  • Added new pre-defined loading modes for: simple shear (13-dir), simple shear (23-dir), simple shear fixed (13-dir), simple shear fixed (23-dir), biaxial (1 and 3 dir), biaxial (2 and 3 dir), confined compression (2-dir), confined compression (3-dir).
  • Can now analyze the stiffness response as a function of load direction also for the ANSYS and LS-DYNA solvers.
  • Improved how experimental data files with bad data are automatically cleaned up when read in.
  • The file name label is now shown in the main graph window even before Run Once or Optimize has been run.
  • The Clear Table function in the data tab is now much faster for large files.
  • Made the Edit Experimental Data function load large data sets faster. Changed the edit data graph so that it does not plot all data points if there are more than 9999 data points. The User can still plot all data points, if needed.
  • Added a function to remove a number of cells in a column and shift the remaining cells upwards while at the same time using the proper time spacing. This is useful when working with data where the stress and strain columns are not synchronized.
  • Enabled plotting experimental engineering stress-strain data for stress relaxation load cases.
  • Moved the functions from the Clean Data Files dialog into the Edit Many Load Cases dialog.
  • It is now possible to export the ANSYS Mooney-Rivlin material model with linear viscoelasticity to XML format.
  • Added pre-defined templates for a multi-temperature TNV model (2 and 3 networks).
  • Added additional output messages when running a general external solver, or an abaqus solver with no optimization.
  • Added more icons for the graph in the Data tab.
  • Removed the ability to hide the main window icons (in the options dialog).
  • Bug fix: Fixed a bug that prevented MCalibration from running Dynamic Data load cases with Abaqus as the solver.
  • Bug fix: Improved Parallel Network (PN) model with ETE=205. The N parameter was not initialized right. 
  • Improved the error message when trying to import a FE input file with the wrong file suffix.
  • Improved the main graph box with material parameter names and values. If there are too many parameters to fit on the screen then only the parameters that are optimized are now shown. Fixed the list of parameters so that if a parameter is locked to be the same as some other parameter, then those parameters that are locked together are only listed once in the box of values.
  • Bug fix: Fixed a critical bug that caused a crash when running an optimization when not all columns are visible in the material model parameter table.
  • Now prints a warning if a load cast fails when running a Drucker stability test.
  • Bug fix: Increased the robustness of MCalibration when reading in experimental engineering strain data values that are less than -1.
  • Bug fix: The Make Strain Rate Constant feature of the Data Tab now works when there are more than 3 data columns.

General Improvements:

  • Switched the license server to RLM version 14.0.
  • Many updates to the PolyUMod User’s Manual.

Previous

PolyUMod Improvements:

  • This version of PolyUMod supports the following FE solvers:
    • Abaqus 2017, 2018, and 2019 (both Windows and Linux)
    • ANSYS 19.2, 2019R1, and 2019R2 (both Windows and Linux)
    • COMSOL 5.4 (Windows)
    • LS-Dyna 10.1 (Linux), 11.0 (Windows)
    • MSC.Marc 2018.1 (Windows)
  • The Parallel Network (PN) model now supports a new anisotropic hyperelastic model (EType=27) based on the Holzapfel-Gasser-Ogden model but supporting different strain-dependent stiffnesses for each fiber family.
  • We have added support for Hyperfoam components in the Three Network Viscoplastic (TNV) model.
  • We have added a new numerical Jacobian calculation option (JAC=7) that often works better for highly compressible foams.
  • All numerical Jacobian calculations now allow for large negative Jacobian values, often useful for materials undergoing significant softening after yielding or during failure.
  • When using PolyUMod with Abaqus, PolyUMod messages are now not only printed to standard output, but also appear in Abaqus output files.

MCalibration Improvements:

  • The Load Case dialog now contains additional pre-defined loading modes, making it easier to calibrate anisotropic materials. The new pre-defined loading modes include: simple shear in 3 different directions, biaxial loading in 3 different orientations, and confined compression in 3 different directions.
  • Users may calibrate the improved Three Network Viscoplastic (TNV) models which now support Hyperfoam components.
  • The internal MCalibration solver for the Abaqus Linear Viscoelasticity model now calculates both the shear and volumetric relaxation responses.
  • This release introduces an internal solver option for calibrating the ANSYS Linear Viscoelasticity model based on Mooney-Rivlin hyperelasticity.
  • We have added support for calibrating the ANSYS Bergstrom-Boyce (BB) model with Mullins damage using an internal solver.
  • The dialog for evaluating Young’s modulus as a function of orientation now also works with ANSYS and LS-DYNA FE solvers.
  • We have improved error messages when running a FE solver that does not complete successfully.
  • If a material parameter is hitting an upper or lower bound, the parameter table is shaded red in order to indicate that a bound has been reached.
  • Users may now specify a Poisson’s Ratio for test data to have MCalibration calculate the transverse strain, especially useful for foam materials. Now when you convert experimental stress-strain data between engineering and true (e.g., Data à Convert Eng. e-s to True), a dialog box will open, prompting you to enter a Poisson’s Ratio to use for the conversion.
  • If a user imports a load case with a decreasing time vector, MCalibration now shows a clear warning and corrects the issue.
  • We have added one more graph background style consisting of horizontal lines.
  • We have added several virtual compression load cases.
  • MCalibration licenses have been simplified and are now read immediately if an Activation Key creates a new node-locked license.
  • We have refined the MCalibration Abaqus PRF and template models.
  • We have improved MCalibration model exports and Inverse Calibration.
  • Material model import to MCalibration now supports name and density.

General Improvements:

  • This release introduces the new Veryst Knowledge Base:
    • it provides a unified online platform for all software documentation
    • it includes updates of many tutorials and troubleshooting documents
    • it includes links to relevant webinars
    • for continuity of offline access, this release continues to include the original documentation.
  • We redesigned the Windows Installer to provide a more seamless installation experience.
  • This release includes several bug fixes and minor improvements.  For example, this fixes a crash introduced by hotfix 4 of Abaqus 2019 (Windows).

PolyUMod Improvements:

  • This version of PolyUMod supports:    
    • Abaqus 2019
    • ANSYS 2019R1
    • COMSOL 5.4
    • LS-DYNA 10.1 on Linux, 11.0 on Windows
    • MSC.Marc 2018.1
    • All PolyUMod material models are now fully supported in ANSYS Workbench Engineering Data.
    • The PolyUMod User’s Manual now includes an extensive section on the Three Network Viscoplastic (TNV) model and its underlying theory.
    • The default Jacobian flag (JAC) for the Three Network Viscoplastic (TNV) model is now 3.

MCalibration Improvements:

  • Users are now able to indicate graphically if a test was run to failure. This can be activated using the Miscellaneous tab in the Load Case Setup dialog.
  • MCalibration now includes a new tutorial describing the input format for experimental data.
  • MCalibration now enables a user to update global material parameters without changing any of the calibration parameter values.  To use it, modify the values in the tabs on the right side of the “Select a Material Model” dialog, then instead of pressing “OK”, press “Update Info.”  This may not be used to change the material model itself.
  • Users may now plot Total Energy Density for model predictions of PolyUMod material models.
  • MCalibration now enables a user to export any PolyUMod material model directly into an MCalibration template format. This can be useful when creating a Multi-Temp or Multi-Rate PolyUMod template material model.
  • We have added a single-pole impulse response (IIR) low-pass filter to the data clean up tab of MCalibration. This filter can be applied by selecting a data column and then clicking on the “Smooth Data” button.
  • MCalibration includes a new button in the load case dialog, enabling users to add a degree symbol to a Load Case name.
  • The following finite element settings are now also saved in the mcal-file. These values can also be specified in the Settings dialog box.    
    • Abaqus hybrid element flag
    • Abaqus reduced elements flag
    • Abaqus double precision flag
    • Abaqus save field output flag
    • Delete Abaqus files when done flag
    • Delete ANSYS files when done flag
    • Delete LS-DYNA files when done flag
    • Delete MSC.Marc files when done flag
    • ANSYS dat-files are now exported with an improved format.
    • Can now import the following material models in ANSYS dat-format: all Veryst Material Database models, the PolyUMod Multi-Temp model, and the PolyUMod Multi-Rate model.
    • Can now import the following material models in Abaqus inp-file format: all Veryst Material Database models, the PolyUMod Multi-Temp model, and the PolyUMod Multi-Rate model.

General Improvements:

  • We have updated our license agreement to comply with GDPR.  See the installers or MCalibration’s Help menu for the new agreement.
  • This release includes several bug fixes and minor improvements. For example:    
    • The Pan Right button in MCalibration now works better.
    • Improved the LS-DYNA template in MCalibration for MAT_027.
    • Transverse strain can be now imported more robustly in MCalibration.

Veryst Material Database improvements:

  • Four new models added to the Veryst Material Database: silicone rubber, polypropylene (PP), EPDM rubber, linear low density polyethylene (LLDPE). The Veryst Material Database now supports 22 different commonly used polymers. Note that you will need a separated license to use the Veryst Material Database.
  • All Veryst Material Database models are now fully supported in ANSYS Workbench Engineering Data.

PolyUMod Improvements:

  • This version of PolyUMod supports:    
    • Abaqus 2018
    • ANSYS 19.2
    • COMSOL 5.4
    • LS-DYNA 10.1 on Linux, 9.2 on Windows
    • MSC.Marc 2017
  • All PolyUMod material models are now fully supported in ANSYS Workbench Engineering Data.
  • The Three Network Viscoplasticity (TNV) model has been improved:    
    • It now supports both strain-based and stress-based failure models. These failure models can include strain-rate and triaxiality dependence.
    • The equation for strain-rate dependence of failure has been reformulated to be dimensionally more convenient.
    • In MCalibration, the TNV model selection dialog box has been improved by including pre-selected options for elastomers, thermoplastics, thermoplastic elastomers (TPE).
  • Some bugs and issues were fixed.

MCalibration Improvements:

  • MCalibration can export all PolyUMod and all Veryst Material Database models into ANSYS Workbench Engineering Data format.
  • MCalibration now has built-in support for the following 23 ANSYS material models:    
    • Linear elastic
    • Blatz-Ko
    • Ogden-Foam
    • Bergstrom-Boyce
    • Elastic-Plastic with isotropic hardening
    • Neo-Hookean: with and without Mullins damage
    • Eight-Chain: with and without Mullins damage
    • Gent: with and without Mullins Damage
    • Yeoh-3: with and without Mullins Damage
    • Mooney Rivlin 2: with and without Mullins Damage
    • Mooney Rivlin 3: with and without Mullins Damage
    • Mooney Rivlin 5: with and without Mullins Damage
    • Extended Tube (ETube): with and without Mullins Damage
    • Ogden-3: with and without Mullins Damage
  • When running the Validation load cases using ANSYS as the solver, each test case will now have a unique name.
  • MCalibration will now ask for the strain rate when reading in an experimental data file that does not contain a time column.
  • The Load Case dialog can now be used to assign a fitness weight to ensure that a material model satisfies Drucker’s stability.
  • MCalibration now supports the following command line arguments: -help, -verb [value], runOnce, -optimize, -noGUIloadcase.
  • When running MCalibration from the command line, text files with important information are created in the directory:    
    • The simulated data
    • The material model in PolyUMod format
    • The fitness weights of each load case
  • The Relaxation and Creep load cases now support planar tension.
  • The Covariance Matrix Adaption Evolution Strategy (CMA-ES) optimization has been added. This optimization algorithm is a stochastic, derivative-free method for a nonlinear optimization problem. The algorithm belongs to the class of evolutionary algorithms and evolutionary computation. The algorithm is very effective at probing a large parameter space and is particularly useful when the initial guess of the material parameters is poor.
  • Added support for the Abaqus Parallel Rheological Framework (PRF) model with 3 Yeoh networks with Mullins damage and power flow. This model can be useful for thermoplastic elastomer materials.
  • The Compression with Friction load case now works with the ANSYS solver.
  • MCalibration can now include adiabatic heating in the calibrations. The adiabatic heating options are specified in the material model dialog, and in the Material Info and Properties tab. If a specific heat (Cp) value is specified then the dissipated energy will be converted to a temperature increase based on the specified beta-factor. If beta=1 then all dissipated energy will be converted to a temperature increase, if beta=0.5 then half of the dissipated energy is converted to a temperature increase. Note that the beta factor can be strain and strain-rate dependent. The temperature increase is adiabatic and heat transfer is not considered. Adiabatic heating is only active when the internal MCalibration solver is used.
  • MCalibration can now save the predicted data to the mcal-file. This can be activated in the MCalibration options dialog.
  • The load case tool tips can be deactivated in the Options Dialog.
  • The table of material parameters in the main graph are now color coded. Parameters that are optimized are blue, fixed parameters are black.
  • All graphics in MCalibration now have a context menu item for saving the graph data to a csv file.
  • Added a button to set the material name, mass density, and material description without using the Material Model dialog. 
  • Can now copy multiple rows and columns in Excel or Libreoffice, then paste that into MCalibration by using the menu item Edit > Paste. It is not necessary to save an Excel file to csv file format first and then read in the csv file. The import can be performed using the clipboard.
  • Added an LS-DYNA template for the *MAT_JOHNSON_COOK model.
  • New tutorials:     
    • Convergence Properties for Different Optimization Methods
    • Drucker’s Stability Calibration
    • Verifying the Installation with ANSYS
    • Verifying the Installation with LS-DYNA
    • Adiabatic Heat Generation in MCalibration
  • Some bugs and issues were fixed.

MCalibration Improvements:

  • Now supports 18 pre-calibrated material models. These material models work with all supported FE solvers:    
    • PTFE
    • Polyethylene terephthalate (PET)
    • High density polyethylene (HDPE)
    • Acrylonitrile Butadiene Styrene (ABS)
    • Additive Manufactured Polyamide 11 (AM PA11)
    • Additive Manufactured Cyanate Ester (AM CE)
    • Additive Manufactured Polyurethane (AM PU)
    • Additive Manufactured Polyamide 12 (AM PA12)
    • Polyetherimide (PEI), Slow Strain Rates
    • Polyetherimide (PEI), All Rates
    • 30% Glass Fiber Filled Polyetherimide (GF PEI)
    • Polyamide 6/6 (PA 66)
    • 30% Glass Fiber Filled Polyamide 6/6 (GF PA66)
    • Polycarbonate (PC)
    • Polyether ether ketone (PEEK), Slow Strain Rates
    • Polyether ether ketone (PEEK), All Rates
    • Polyether ether ketone (PEEK), Different Temperatures
    • Poly-L-lactide (PLLA)
  • Can now add an equation-based fitness value that is based on the specified material parameters.
  • Updated ANSYS template for BISO plasticity.
  • Added validation test cases for ANSYS.
  • Can now import Load Case data without Time.
  • MCalibration with Abaqus template no longer adds an initial empty line in created inp-file.
  • Corrected clear material model.
  • Fixed issues with Creep Preload Time.
  • Added the ability to save the options for two graphs.
  • Improved the performance of elastic plastic with isotropic hardening.
  • Can properly import Abaqus Test Data in Compression and Abaqus Volumetric Test Data.
  • Better handling of the temperature in DMA data.
  • Improved function of Scale Material Parameters.                    
  • Toe-in correction now works with transverse strain.
  • Improved Default Limits for Abaqus Hysteresis Model.
  • FEN model dialog box for Pressure Dependence now activates p0.

PolyUMod Improvements:

  • Now support Abaqus 2018 and ANSYS 19.0.
  • Added a new viscoplastic material model called the Three Network Viscoplastic (TNV) model. This new model supports higher order volumetric compression behavior, viscoplastic volumetric flow, yield evolution and damage, and an advanced failure model with strain-rate and triaxiality dependence.
  • Improved run times for some models
  • Better support for shell and plane stress elements in LS-DYNA.
  • Resolved issues with precalibrated material models with LS-DYNA.

Other Improvements:

  • License server is updated to version RLM 12.3.
  • Separated installers for PolyUMod and MCalibration.
  • PolyUMod: Implemented support for a library of already calibrated material models. This release supports already calibrated material models for: PTFE, PET, and HDPE.
  • PolyUMod: Now works with MSC.Marc 2017, ANSYS 18.2, and COMSOL 5.3a.
  • PolyUMod: Started to add a new anisotropic viscoplastic material model that supports volumetric flow.
  • PolyUMod: Added a new flow model to the Parallel Network (PN) model. The new flow model (FType=519) is called Power-Law Flow with Volumetric Dilatation.
  • PolyUMod: Added a new elastic element type to the Parallel Network (PN) model. The new elastic element type (EType=26) is called Eight-Chain Hyperelastic Model with Strain-Dependent Modulus.
  • PolyUMod: Added a new two-network anisotropic viscoplastic material model for thermoplastic materials. The new material model is called the A2N model.
  • PolyUMod: Almost all material models now consider initial stresses. In Abaqus, the initial stresses can be specified with the *INITIAL CONDITIONS, TYPE=STRESS command.
  • PolyUMod: The Multi-Rate, Multi-Temperature, and Time-Switch model frameworks now work with all supported FE solvers.
  • PolyUMod: The DNF model can now use etaVol=0 to deactivate volumetric flow, and thetaBase=0 to deactivate pressure dependence.
  • PolyUMod: Fixed a bug in Parallel Network (PN) model flow element FTYPE=508.
  • License Server: Switched to rlm version 12.2.
  • MCalibration: Made it faster to activate and deactivate load cases, and to move load cases in the load case table.
  • MCalibration: Updated to Qt 5.9.1 for Windows.
  • MCalibration: The material parameter’s table is now disabled during calibrations.
  • MCalibration: The Compression with Friction load case now also works in tension. In this case the top and bottom surfaces are tied.
  • MCalibration: Load case tool tips are now truncated if more than 30 lines long.
  • MCalibration: The mcal-file now saves more settings of the main graph.
  • MCalibration: Removed qtwebengine, making it easier to deploy the software.
  • MCalibration: Fixed a bug that prevented the Poisson’s ratio from being plotted properly if the first two experimental data points have zero axial strain.
  • MCalibration: Virtual load cases now work better when using stress control.
  • MCalibration: Fixed a bug in the Abaqus-Hyperelastic-Mullins model.
  • MCalibration: Made the Levenberg-Marquardt optimization algorithm more robust.
  • MCalibration: The Abaqus Hyperelastic-Yeoh-Mullins model is now imported properly from an Abaqus inp-file.
  • MCalibration: Added flag in the load case dialog box for specifying that an LS-DYNA simulation should use quasi-static control.
  • MCalibration: Can now set the time step size for multiple load cases at once.
  • PolyUMod: Verified that PolyUMod works with COMSOL 5.3.
  • PolyUMod: Fixed the energy calculations for the Elastic Plastic Table (EPT) model.
  • PolyUMod: Created a double precision LS-DYNA MPP shared library module for Linux.
  • PolyUMod: Fixed an issue with the Jacobian for the REF model.
  • PolyUMod: Fixed an issue when using shell elements and the global failure models.
  • PolyUMod: Fixed an issue that made it difficult to run the REF model with ANSYS.
  • General: Created a new YouTube video giving an introduction to MCalibration.
  • General: The Linux installer now adds a few additional Qt library files. This will make it easier to run MCalibration on a Linux computer that does not have Qt installed.
  • MCalibration: The main window can now show 2 different plots with different axis quantities.
  • MCalibration: Added a new icon for plotting time-stress data.
  • MCalibration: When exporting experimental data, information about the temperature is now also saved. Also, units of the exported variables are listed in the header.
  • MCalibration: Added check box for for setting the Abaqus solver type to *DYNAMIC, APPLICATION=QUASI-STATIC. This check box is only visible when Abaqus/Standard is set as the solver.
  • MCalibration: Added support for the ANSYS_OGDEN_FOAM model.
  • MCalibration: Can now calibrate anisotropic LS-DYNA material models.
  • MCalibration: The LS-DYNA Implicit and Explicit solvers can now analyze virtual load cases.
  • MCalibration: Can now add or remove terms in an Abaqus Linear Viscoelastic model and still keep the values of the other terms.
  • MCalibration: Can now import the following native Abaqus material models from an inp-file: linear elastic, hyperelastic, hyperfoam, hyperelastic with Mullins damage, hyperelastic with linear viscoelastic.
  • MCalibration: Can now read in experimental data files that contain one or more columns with text.
  • MCalibration: Fixed a bug in how manually specified time stepping (dt0, dtMin, dtMax) was read from an mcal-file.
  • MCalibration: Improved the dialog for specifying the Abaqus PRF model template.
  • MCalibration: Can now run a General External Solver load case with %ansys% without using a batch file.
  • MCalibration: Improved how elastic and viscoplastic energies are calculated for internally implemented models.
  • MCalibration: Improved the template that is used when exporting a model to ANSYS APDL-format.
  • MCalibration: The Validate Material Model dialog now sets the default temperature based on the defined load cases.
  • MCalibration: Improved the About dialog and the License Activation Key dialog.
  • MCalibration: Can now change the number of parameters of an already defined Abaqus Elastic-Plastic Isotropic hardening plasticity model.
  • MCalibration: The General Solver load case now works better with Abaqus native material models.
  • MCalibration: Fixed a bug that made it difficult to delete an already defined PN model network, and made it easier to add a network to an already existing PN model.
  • MCalibration: Can now click on the View Model Structure icon for the PN model even if no network has been defined.
  • MCalibration: Changed the button locations for the PN model definition.
  • MCalibration: Improved how permanent set load cases are calculated.
  • MCalibration: When selecting the TN model and no experimental data is available, the provided TN model is now temperature independent.
  • MCalibration: When defining a PN model, can now just click Add Network without setting a new network name. A new name will be selected automatically.
  • MCalibration: When ANSYS is used as the solver and the ANSYS simulation does not run to completion, then lines in the message file that contains ERROR are echoed in MCalibration.
  • MCalibration: Fixed a bug that prevented template material models from being edited.
  • MCalibration: Better support of material model templates that are either empty or really long.
  • MCalibration: Changed the order of the items in the Options dialog box. Global options is now first.
  • MCalibration: The BBM model has a default lower bound of parameter “b” of 0.
  • MCalibration: Does not show multiple warnings if a mcal-file cannot be saved during optimization.
  • MCalibration: Load Case names can now include a degree sign and still work with external FE solvers.
  • MCalibration: The ANSYS solver now also works for anisotropic materials with a local coordinate system.
  • MCalibration: Added ANSYS template for polynomial-based anisotropic hyperelasticity.
  • MCalibration: The General External Solver load case now works even if no external data extraction command is given.
  • MCalibration: Can import experimental data from an Abaqus inp-file that contains the following key words: *UNIAXIAL TEST DATA, *BIAXIAL TEST DATA, *PLANAR TEST DATA, and *VOLUMETRIC TEST DATA.
  • MCalibration: The default line colors have been changed to improve the visibility of the curves.
  • MCalibration: The path to the LS-DYNA solver can be specified using %lsdyna%.
  • MCalibration: Added a feature to create a license file from an activation key.
  • MCalibration: Improved how the parameters for the TN model are selected when temperature data is available.
  • PolyUMod: Initial implementation of a table-based elastic-plastic material model. The new model is called the Elastic-Plastic Table (EPT) model. The model theory is described in the PolyUMod User’s manual. We will continue to update and add features to this model in the next release.
  • PolyUMod: Now supports LS-DYNA version 9 and ANSYS 18.
  • Improved the installation guides for both Linux and Windows.

Technical support is now available through our online Veryst Software Help Center: https://verystsoftware.atlassian.net/servicedesk/customer/portal/4

  • The Linux installer has been simplified. There is now only one Linux version of MCalibration.
  • PolyUMod: Now supports Abaqus 2017 and COMSOL 5.2A.
  • PolyUMod: Added internal implementation of the PRF2YB and PRF3YP material models.
  • PolyUMod: The Responsive Elastomer Foam (REF) model now supports global failure modes (parameters 15 and 16).
  • MCalibration: Improved the initial material model guess for the following Abaqus hyperelastic models: Arruda-Boyce, Neo-Hookean, Yeoh, Mooney-Rivlin.
  • MCalibration: The “Import Material Model” function can now also import the following Abaqus commands: *UNIAXIAL TEST DATA, *PLANAR TEST DATA, *BIAXIAL TEST DATA, *VOLUMETRIC TEST DATA. The experimental data defined in these commands are imported into separate load cases.
  • MCalibration: Added a function for automatically calibrating multiple material models. The new feature is available from the Material Models menu.
  • MCalibration: Now using Qt version 5.7.
  • MCalibration: Improved the robustness of how load cases are renamed and how the initial guess of the material parameters is generated.
  • MCalibration: Improved robustness of internal implementation of PRF2YB, PRF3YP.
  • MCalibration: Comments are now read in properly.
  • MCalibration: The material model dialog now remembers which material model types were used the last time.
  • MCalibration: Fixed a bug that caused the software sometimes to crash when extracting stress-strain data from the Abaqus solver.
  • MCalibration: Fixed a bug that prevented mcal-files in version 3 format containing virtual load cases from being imported properly.
  • MCalibration: The material model dialog is now loading model templates without double line spaces on Windows.
  • MCalibration: Fixed a bug in plotting experimental true strain data when the load case contains no transverse strain data.
  • MCalibration: Fixed a bug in the new PN model elastic element type 25.
  • PolyUMod: Fixed an error in how LS-DYNA was linked with the new RLM license server.