Finite Planar Elements Properties

 

The properties window displays the elements properties and allows their modification.

 

 

Accessing the Finite Planar Elements Properties

To focus only on finite element properties, select FE Properties from the Properties filter drop-down list. This action filters the display to show only the attributes relevant to finite element analysis, providing a clearer and more simple interface.

 

Plana elements - FE properties

Properties window

 

Using the Properties window for Finite Planar Elements

In the properties window, you can view and modify the properties of finite planar elements, allowing for detailed customization and management.

 

Key Features and Functions:

  1. General

 

Tip: Elements with different properties (material, cross section, etc.) can share the same name that can be used as a selection criteria.

 

 
  1. Super element (grouping and processing a set of finite elements)
 
  1. Material

Select a material type from the drop-down list or click to display the Materials dialog box and select a material from the available libraries.

 
  1. Eccentricity

Define the position of the planar element cross section relative to its own z axis. Input the desired value corresponding to the cross section offset relative to the z axis (expressed in the current units for cross sections dimensions).

Eccentricity

 
  1. Thickness

 

Basic mode definition of Stiffness modifiers

Basic mode definition of Stiffness modifiers

 

 

 

Detailed mode definition of Stiffness modifiers

Detailed mode definition of Stiffness modifiers

Compute from basic. Convert coefficients from Basic to Detailed mode. This option is available when a single planar element is selected or when multiple planar elements with the same thickness, material properties, and basic stiffness coefficients are selected.

 

 

 

  1. Cost and CO2 calculations

Cost estimations

 

CO2 emission 

 
  1. Releases

 

Properties Releases

Properties of releases

 

 

Releases Definition

Releases Definition - step 1

 

Releases Definition

Releases Definition - step 2

 

Releases Definition

Releases Definition - step 3

 

 

Releases dialog box  

The Releases type column lists all predefined options and custom releases defined by the user.     

Clicking the icon next to the Releases type, Linear release type dialog box will open. 

The same dialog box can be accessed from the ribbon: Manage Tab, Settings section: 

 

Linear Releases on ribbon

Linear Releases on ribbon

 

 

Description of Linear release types dialog box

In the Linear release types dialog box, settings for predefined releases can be displayed and new releases can be defined.  

Linear releases are always defined in the local coordinate system of the edge. 

 

Linear Releases dialog box

Linear releases types dialog box

 

 

 

The predefined release types (Fixed, Pinned, Free) cannot be edited/deleted.    

 

 

 


In the linear analysis, the stiffness of the release will be considered, and the nonlinearity setting will be ignored. For example, three releases with identical stiffness and nonlinearity set to Compression Only, Tension Only, and None, will show the same behavior during linear analysis. 

In the nonlinear analysis, the stiffness of the release and nonlinearity will be considered. Compression/Tension only edge releases will be active only in the mesh nodes located on the edge where compression/tension occurs.  

 

 

  1. Mesh

The meshing of the planar elements is performed according to the global mesh settings. The global mesh command is accessed from the main menu Options > Mesh. The meshing parameters for each planar element are defined using the properties window options.

 

This option is useful for membrane elements that do not have in plane rigidity.

Mesh

                            

- The number of mesh elements along the planar element side

- The size of a mesh element

- The spacing between mesh nodes along the planar element side

- Secondary size: define the size of meshes along the planar elements side considering the first defined size. The size of meshes will vary between the first and the second size values.

Tips

- The simplified definition parameters values can be reset to 0 using the mesh options: from the main menu select Options > Mesh and click Reset mesh in the Mesh options dialog box (when the mesh type is Grid).

- The detailed definition parameters values can be reset to 0 using the mesh options: from the main menu select Options > Mesh and click Reset mesh in the Mesh options dialog box (when the mesh type is Delaunay).

 

 

  1. Results grid
 
  1. Behavior coefficient
 
  1. Load Area Transfer

 

Tip: Click a section of the properties window. Notice the bottom area of the window; it displays a short description of the cell's current content.

 

 

Accessing the properties

 

When there are more planar elements selected, the properties window displays their common properties.

 

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