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Scale Thickness Tool

Scale Thickness Tool

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Scale Thickness Tool

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Use the Scale Thickness tool to scale the thickness of elements in your model. You can access this tool by clicking Mesh > Edit > Elements > Scale Thickness from the menu bar, or clicking Scale in the Map Mid-Mesh Thickness tool when the LS-DYNA and RADIOSS user profiles are loaded.

To scale the thickness of elements in your model:

1.Under Thickness Location, specify the thickness location of the entities you want to scale. By defining the minimum thickness and/or the maximum thickness, the scaled thickness will not go below the minimum and beyond the maximum thickness mentioned.
Note:Nodal thickness on elements is only available when you are using the LS-DYNA user profile

scale_thickness_tool_1

2.Under Selection, select with entities you want to scale by selecting:

All: Select all of the entities in your model.

or

Entities: Select specific entities in your model using the entity selector.

scale_thickness_tool_2

3.Under Scale by, specify whether to multiply, add, or subtract the existing thickness with a desired value. To subtract from the thickness, select Add and then specify a negative value.
Note:You cannot multiply with a negative value.

scale_thickness_tool_3

4.To scale the thickness, click Calculate.

 

Scale Thickness Behavior in LS-DYNA

In the LS-DYNA user profile, you can only perform thickness operations on *ELEMent_SHELL_THICKNESS and *ELEMENT_SHELL_COMPOSITES elements. If the card image of elements is *ELEMENT_SHELL_COMPOSITES, then the total thickness will be calculated using the sum of all the THICK attributes. Scaling will be done in proportion with all the thickness attributes.

For example, consider the number of plies is four and the THICK attributes are: THICK(1) = 2, THICK(2) = 4, THICK(3) = 6, THICK(4) = 8. The total thickness will equal 20. If you add two to this thickness, then after scaling the thickness of these attributes will be: THICK(1) = 2.2, THICK(2) = 4.4, THICK(3) = 6.6, and THICK(4) = 8.8. After scaling, the total thickness will become 22.

 

Scale Thickness Behavior in RADIOSS

In the RADIOSS user profile, you can only perform thickness operations on /SHELL/ and /INISHE cards. /INISHE supports the following three cards: INISHE/EPSP_F, INISHE/STRA_F, and INISHE/STRS_F. If the thickness attribute of /SHELL is not defined and /INISHE is not available, then the thickness will either be defined by the Property or Component. As of now, the thickness of Pro-perty and Component entities cannot be assigned using the Scale Thickness tool, therefore thickness will be assigned to the /SHELL thickness attribute.