> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Beam Attribute

<CardGroup cols={2}>
  <Card title="Scalar Field, Isotropic Material, Implicit Body, 1.1.0" href="#scalar-field-isotropic-material-implicit-body-110" />

  <Card title="Scalar Field, Material, Implicit Body" href="#scalar-field-material-implicit-body" />
</CardGroup>

***

## About this Block

**What it does:**  Applies material and thickness attributes beam elements.

**Common uses:**

* An input in [**Solid Domain**](/block-documentation/blocks/structures/model/solid-domain.html).

**Tips:**

* You can use multiple FE Attributes in an **Solid Domain**.
* If no Region is defined, the attribute applies the material to the entire mesh. Use the Region input to define a material in a specific area.
* When defining a Region for the attribute, all elements need an assigned attribute. Do this by providing one or more additional attributes for all regions, or at least one additional attribute without a Region to apply that attribute to all areas not covered by the first Region.
* You can use a Scalar Field to define the thickness of the beams.

## Example File

Download Example: [FE Beam Attribute](https://storage.googleapis.com/files-learn/static/ExtendedBlockDocs/fe_attributes.ntop)
![FE Beam Attribute](https://storage.googleapis.com/files-learn/static/ExtendedBlockDocs/fe_beam.png)

***

<h2 id="scalar-field-isotropic-material-implicit-body-110">
  Scalar Field, Isotropic Material, Implicit Body, 1.1.0
</h2>

Define the beam thickness and material properties as attributes of beam elements.

### Inputs

| Name | Type | Description |
| - | - | - |
| Thickness | [Scalar Field](../../../../block-documentation/types/scalar-field) | The thickness at the nodes of the beam elements. |
| Isotropic material | [Isotropic Material](../../../../block-documentation/types/isotropic-material) | The underlying material. |
| Region | [Implicit Body](../../../../block-documentation/types/implicit-body) | The region this attribute applies to. |

### Outputs

| Type |
| - |
| [Solid Attribute](../../../../block-documentation/types/solid-attribute) |

***

<h2 id="scalar-field-material-implicit-body">
  Scalar Field, Material, Implicit Body
</h2>

Apply attributes to beam elements.

### Inputs

| Name | Type | Description |
| - | - | - |
| Thickness | [Scalar Field](../../../../block-documentation/types/scalar-field) | The thickness at the nodes of the beam elements. |
| Material | [Material](../../../../block-documentation/types/material) | The underlying material. |
| Region | [Implicit Body](../../../../block-documentation/types/implicit-body) | The region this attribute applies to. |

### Outputs

| Type |
| - |
| [Solid Attribute](../../../../block-documentation/types/solid-attribute) |


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