Defining Materials and Media Types

Materials can be defined in Trelis and assigned to element blocks. If an element block is exported without a material assigned to it, a default material (with properties for common steel) will be exported for it.

Creating and modifying materials can be done two ways

  1. On the Command Panel, click on Analysis Groups and Materials and then Block.
  2. Click on the Create Material or Modify Material action button.
  3. Select FEA Material from the drop-down menu.
  4. Enter in the appropriate settings.
  5. Click Apply.

Or

  1. On the Command Panel, click on FEA BCs.
  2. Click any option from the Entity list.
  3. Click on the Create Material or Modify Material action button.
  4. Select FEA Material from the drop-down menu.
  5. Enter in the appropriate settings.
  6. Click Apply.

Create Material [id] [Name <'name'>] [Elastic_modulus <value>] [Poisson_ratio <value>] [Shear_modulus <value>] [Density <value>] [Specific_heat <value>] [Conductivity <value>] [User constants <value ...>] [DepVar <value>]

Modify Material <id_list|'name'|all> [Name <'name'>] [Elastic_modulus <value>] [Poisson_ratio <value>] [Shear_modulus <value>] [Density <value>] [Specific_heat <value>] [Conductivity <value>] [User constants <value ...>] [DepVar <value>]

To create and modify media

  1. On the Command Panel, click on CFD BCs.
  2. Click on the Create Medium or Modify Medium action button.
  3. Select CFD Media from the drop-down menu.
  4. Enter the appropriate settings
  5. Click Apply.

Create Media [id] [Name <'name'>] [Fluid|Porous|Solid]

Modify Media <id_list|'name'|all> [Name <'name'>] [Fluid|Porous|Solid]

Materials can be created with any number of the following material properties:

Media types include:

Any properties that are not initialized by the user will have a default value of 0.

Materials and media types can be listed and deleted using the following commands:

List Material <id_list|'name'|all>

Delete material <id_list|'name'|all>

List Media <id_list|'name'|all>

Delete Media <id_list|'name'|all>

Materials and media can be added to an existing block using the following command:

Block <id> Material <id|'name'>

Block <id> Media <id|'name'>