Learning Forum

[Ye Hong]

For small deformation, volumetric CTE = 3*linear CTE, and Areal CTE = 2*linear CTE.  Now, I collected temperature dependent Linear CTE inputed as part of my mateiral property.  When I modelling for solid cubical or plate, shall I also change the CTE according to the shape of the object? 

[Sampat Kumar]

Hi 
CTE is the thermal property of the material and it will not change on the basis of the shape of the object. Like for volumetric CTE = 3 Linear CTE. Here the CTE is the same but for easy calculation, we have denoted the term 3 *Linear CTE as volumetric thermal expansion. CTE is the property of the material and it will not depend upon the shape and size of the material. 

Regards,
Sampat

 

[Ye Hong]

Thanks for your prompt response!

By definition, the CTE in Workbench is linear expansion data or else? 

[Sampat Kumar]

Hi 
It's a linear thermal expansion. 

[Ye Hong]

Thanks for your clarification!