Materials

In the Materials table of the 'Timber Design' category, all materials that you have created in the model are listed.

Materials table for timber design with color-coded entries

Permissible materials

Timber design is linked to materials of the Timber type. The font color of the materials provides information about the use and permissibility of the material. The colors mean:

• black: material is suitable for design and is used for the objects to be designed
• red: material is not suitable for timber design
• blue: material is not used in the model
• gray: material is not used for the objects to be designed
• purple: material was generated via the Multilayer Surfaces add-on and is used for design

Objects assigned an invalid material are not considered in the design - even if the 'To be designed' option is enabled for this material. They are automatically listed in the Objects to Be Designed table as 'Not valid / deactivated'.

Remove material from design

For a valid material, you can exclude all objects assigned to the material from design by deactivating the 'To be designed' checkbox. These objects are then classified as 'Not valid / deactivated' in the Objects to Be Designed table and are not checked during design.

Adjust material properties for design

If you want to use user-defined strengths or partial safety factors for timber design, you can adjust the material properties: Double-click the corresponding table row or use the button in the table toolbar to open the material edit dialog.

In the 'Base' tab, check the User-defined material option (see chapter Materials of the RFEM manual). This allows the material properties to be edited. For example, in the 'Material Values' tab, you can change the material stiffnesses and strengths.

Adjust Material Properties for Timber Design

In the 'Timber Design' tab, you can adjust the partial safety factors and other design-relevant coefficients of the material for design according to the selected standard, for example γ_M or k_mod for EN 1995.

Adjust Coefficients for Timber Design

Options

The symbols in the 'Options' column stand for various settings or modified values. They provide a quick overview, for example to identify materials with adjusted properties.