Learning Forum

[mateuszkumor98]

Hello!

Guys I'm trying to model non-homogenus materials in Ansys Workbench, but it's a huge problem with dependence of material properties within a coordinate system.

I need to create material variable( E,G, is changing in function of radius R of 3D cylindrical bar) - non-homogenus properties.

Could you please help me in that? Maybe you had a similar problem in the past.

I know that it can be possible by material variable function in Engineering materials tab but idk how to implement it exactly.

Thanks in advance!

 

[Harshvardhan]

Hi,
There is a similar discussion on forum. Please go through it and see if it helps.
Element orientation with cylindrical coordination system in Mechanical (ansys.com)

Regards,
Harshvardhan

[fakhrafakhrifakhru]

Hello!

To model non-homogeneous materials in Ansys Workbench, you'll need to define material properties as a function of your spatial coordinates (in this case, the radius R). Here’s a basic outline of how you can do this:

1. Material Variable: You can use a "tabular data" or create a custom material function that varies with the radius R.

2. Command Snippets: Insert a command snippet in the simulation to define properties like Young’s modulus (E) and shear modulus (G) as a function of R. Use APDL code like:

   apdl

   Copy code

   E = E0 * (1 + alpha * R) MP, EX, 1, E

3. Define Coordinates: Ensure you're working in cylindrical coordinates and link your material properties to the local coordinate system.

4. Engineering Data: You’ll likely need to customize the material in the Engineering Data section, using expressions or formulas.

You can find helpful examples in the Ansys documentation or through APDL code tutorials. Let me know if you need more details!

Good luck!

[abrahamrohan78]

I hope that the indicators will increase even faster!

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