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Altair Material Modeler - Web
This chapter walks through the new Material Modeler, web-based environment and introduces the steps required to model hyperelastic materials using AMM by creating projects , adding a material and a quasi-static workflow, importing data, fitting the available models, and finally saving the state and exporting fitted data for CAE analysis.
Add Plot Data
Visualize raw input data before model fitting.
Edit Physics Workflow
Fit experimental data to material models and validate behavior.

Welcome
Altair Material Modeler - Web
This chapter walks through the new Material Modeler, web-based environment and introduces the steps required to model hyperelastic materials using AMM by creating projects , adding a material and a quasi-static workflow, importing data, fitting the available models, and finally saving the state and exporting fitted data for CAE analysis.
- View Dashboard
  Dashboard provides logged in user information, application build and version, and recent projects. You can also create a new project from this page. If the user prefers a dark theme, it is available via the icon in the upper right corner.
- Projects
  Projects are a way of collecting what has been done for one or more materials. Depending on a specific customer's need, a project might contain one material or all the materials used in a sub-assembly (e.g. a truck door) or a full product (e.g. a coffee maker). Create, open, share,and manage new projects on this page. A project contains the project's name, the Author (registered user who created the project), Type (user definable), Email & Phone to contact the project's author, and any notes pertaining to the project.
- Add Material
  Create material entries before importing test data or applying models.
- Add Data
  Upload experimental test data to characterize the material.
- Add Workflow
  Set up model workflows to evaluate physical behavior.
- Add Plot Data
  Visualize raw input data before model fitting.
  - Edit Physics Workflow
    Fit experimental data to material models and validate behavior.
- Export CAE Card
  Generate material cards for integration with CAE solvers.

Edit Physics Workflow

Fit experimental data to material models and validate behavior.

Hyperelastic Characterization Workflow

Page Layout

Left: List of test curves
Center: Plot window
Right: Model settings and results

File Management

Use Import Data to add tension, compression, or shear data.
For format requirements refer to Add Data

Make Curves Available for Fitting

Right-click on test curves.
Select Enable for Fitting.

Select Curves for Fitting

Use check boxes to include curves in the fitting algorithm.
Visual feedback updates the plot.

Select Models for Fitting

Use the model drop-down in the right panel.
Upon selection, parameter fields populate.
- Information Button: Click the i️ icon next to a model header line to view its formula and description.
- Setting Parameter Limits: Use sliders/input fields to define upper and lower bounds.
- Refitting Parameters: Click Refit after modifying limits or curve selection.
- Resetting Parameters: Use the Reset button to restore original parameters.

Fitting the Data & Reviewing Results

Select Test Types: Choose which data types (e.g., tension, shear) are plotted.
Select Models: Switch models and compare fit results visually and numerically.
Edit Parameter Values: Use manual overrides for fine-tuning; save and re-fit if needed.

Save State

Click Save State to record current model configuration

Publish Results (Approving Results)

Use Publish to validate and apply the fitted model to the material.