Learning Forum

[Chee Min Leong]

Hi,

I am trying to vary the young's modulus of a hollow cylinder. In my case, the Young's modulus decreases radially.

I followed the instructions here https://www.padtinc.com/2022/02/03/hold-my-beer-spatially-varying-materials-in-ansys-mechanical-made-easy/
for a cube and applied it to a hollow cylinder.

Since the model I am working with is symmetrical, I have set up quarter symmetry and my final result is shown below.

Figure 1 - Source Points & Score

Figure 2 - Material Plot 

Figure 3 - Young's modulus vs Score

 

Figure 2 shows the young's modulus changing radially but the minimum value is not 1E+9 as shown in figure 3.

 

So, my questions are,

1. Why is the minimum value not what I wrote and how can I fix it?
2. How many source points do I need to map the material properties accurately?

 

Please let me know if you need more information.

 

[Ashish Khemka]

Hi,

 

Is the 'r' value 100 where you expect 'E'=1E9 Pa? Also, if you have the nodes numbers, their location then try using the E values with node number and location for mapping the material property.

 

Regards,

Ashish Khemka