Release Notes 2025.0

The release notes provide details about the new features and enhancements in AMM 2025.0

New Features

Start Up

Altair Material Modeler (AMM) can be launched from Windows as a standalone application via the material_modeler.omd file in the installation under </scripts/oml/>.

Add AMM as an extension (plugin) in Compose 2024 or later, graphical user interface. Once integrated, launch the application selecting the Material Modeler tool button.

AMM Homepage provides options to open Elastoplasic Modeling, Polymer Modeling, Hyperelastic Modeling (an objective workflow in the integrated environment), or to open Multiscale Designer (a separate Altair Application for modeling advanced, heterogeneous anisotropic, composite materials).

Elastoplastic Modeling

  • Temperature Association with Curves
  • AMDC plug-in for importing & exporting curves
  • LS-DYNA MAT123 card support
  • Custom blended curves as a variable mix of two separate models.
  • Strain-Rate Dependent card support for Radioss and LS-DYNA.

Multi-Physics Modeling

  • One of the central concepts in multi-physics material modeling is having an Objective workflow to help identify the necessary physical properties needed for a specific simulation project.

  • The new integrated user interface environment starts with the Material General Information tab. Think of this tab as the “command center” for the modeling workflows.
The following Objective Workflows are specifically listed in the application:
  • AMDC Enhancements: Introduced JSON export functionality to streamline database management, enabling efficient data handling and integration.
  • Inspire Mold: Added support for XML export to facilitate seamless data import into iMold, enhancing workflow and usability.
  • AMS Molding: Expanded material export capabilities with the addition of a material.json format. This includes support for detailed tables covering thermal conductivity and specific heat (Cp) properties.
  • Inspire Extrude: Enabled the export of material data in .mtl format for polymers, supporting improved compatibility with downstream processes.
  • Multiscale Designer: Implemented the generation of _mdsmat.dat files at user-defined temperatures, along with solver-specific material cards tailored for MDS.
  • OptiStruct Enhancements: Provided support for Bulk Data material files, including MATT1 and TABLEM1 cards, to better accommodate E(T) analysis requirements.
  • Material Modeler HE: Introduced advanced hyperelastic material characterization capabilities, enabling precise modeling of complex material behaviors.

Enhancements to Physics-Based Workflows

This release introduces significant updates and features to improve simulation accuracy, usability, and integration with various solvers:

Manufacturing Recommended Process Conditions
  • Enhanced capabilities for defining and optimizing manufacturing processes based on physics-based simulations.
Material Property Modeling
  • Specific Volume Fitting and Model Repair: Improved tools for fitting specific volume data and repairing models to ensure consistency.
  • Shear Viscosity with Temperature Dependence: Advanced modeling of viscosity as a function of temperature for better process simulations.
  • Thermal Conductivity: Accurate modeling of heat transfer properties for thermal simulations.
  • Specific Enthalpy and Specific Heat:
    • Thermal Diffusivity Plot: Visualize material heat diffusion properties.
    • Thermal Effusivity Plot: Analyze material heat transfer interaction efficiency.
Elastic Mechanics with Temperature Dependence:
  • Poisson Ratio Fitting: Enhanced fitting capabilities for temperature-dependent elasticity.
  • Table Creation from Fitted Models:
    • Instantaneous Values: Generate precise elastic property tables.
    • Path Averaged Modeling: Linearize thermal deflection and stress analysis for more efficient simulations.
Multiscale Short Fiber Characterization:
  • Forward characterization for multiscale modeling of short fiber composites to streamline material property prediction.
Dynamic Shear Modulus:
  • Import, Visualization, and Export: Enables dynamic shear modulus modeling as G(T) files for Poisson ratio fitting.
Hyperelastic Modeling and Characterization:
  • Solver support for OptiStruct, Radioss, and Abaqus.
  • Single-curve modeling for material models: NEOH, MRIV, SIGN, YEOH, GENT, ARBY.
  • Multi-curve modeling options expanded to include YEOH, MRV5, MRV9, OGD2, and OGD3.