# Analysis Overrides \[FEA]

Analysis overrides allow you to modify element properties for a specific analysis case without changing the element's base definition. This is useful for modeling scenarios where element properties change under certain loading conditions (e.g., cracked section properties for seismic analysis, or reduced stiffness for temperature effects).

## FENode

Override node properties for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the node (FENode) whose property will be overridden.

**Property:** The node property to override (e.g., Tx, Ty, Tz, Rx, Ry, Rz for boundary condition changes).

**Value:** The new value to assign to the selected property for this analysis case.

## FESpring

Override spring element properties for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the spring element (FESpring) whose property will be overridden.

**Property:** The spring property to override (e.g., Tx, Ty, Tz, Rx, Ry, Rz for stiffness changes).

**Value:** The new value to assign to the selected property for this analysis case.

## FELine

Override line element properties for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the line element (FELine) whose property will be overridden.

**Property:** The line element property to override (e.g., section area, inertia, modulus of elasticity, end releases). Right-click this cell for quick-select options: *Section Area*, *Section Shear Area Y/Z*, *Section J* (torsional constant), *Section Inertia Y/Z*, *Material E*, *Material Poisson Ratio*, and *Section* (to override the entire section assignment).

**Value:** The new value to assign to the selected property for this analysis case. When the property is set to *Section*, right-click this cell to select from available sections in the project.

## FESurface

Override surface element properties for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the surface element (FESurface) whose property will be overridden.

**Property:** The surface element property to override (e.g., thickness, modulus of elasticity, Poisson's ratio).

**Value:** The new value to assign to the selected property for this analysis case.

## FEVolume

Override volume element properties for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the volume element (FEVolume) whose property will be overridden.

**Property:** The volume element property to override (e.g., modulus of elasticity, Poisson's ratio).

**Value:** The new value to assign to the selected property for this analysis case.

## Custom

Override properties for any custom object type for a specific analysis case.

**Analysis Case:** The analysis case for which this property override applies.

**Object:** The name of the object whose property will be overridden.

**Property:** The property to override.

**Value:** The new value to assign to the selected property for this analysis case.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.openbrim.org/templates/openbrimfea/loads-fea/static-loads-fea/analysis-overrides-fea.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.