ElastoDict-Effective Stiffness (AF) only works for linear materials. Choosing nonlinear materials results in an error message when starting the solver.

The materials in the structure model need to be defined under the Constituent Materials tab, so that their mechanical parameters, such as the Young’s modulus (E) and the Poisson’s ratio (ν), are taken into account.

The material for a material ID can be selected by clicking on the corresponding material name. Then, the Material Selector dialog is opened.

The mechanical properties of the structure’s constituent materials are taken directly from the GeoDict Material Database. To enter the material parameters for a linear elastic material manually, choose Manual (Solid) as material.

Any values entered manually e.g., those for a user-defined constituent material, can also be added to the material database through the Edit Material Database… button. Nonlinear materials can also be created in the GeoDict Material Database.

For materials from the material database, the View… button on the right in the Constituent Materials tab shows all parameters of the material.

For Manual materials, the View… button on the right in the Constituent Materials tab changes to Edit… and allows to edit all parameters of the material.

More information on editing, expanding, and using the GeoDict Material Database is available in the Material Database User Guide.