[Feature]: Variable material and damage properties along a given direction

[oldninja]

What are you trying to do and how would you want to do it differently?

The current material and damage models assume fixed values for parameters such as the elastic modulus, density, and/or critical stretch. However, we would like to implement a variable model in which these properties are assigned based on a given variable (in this case location-dependent).

As I understand the code right now, you can try to use the approach as shown in this example: examples/RVE/RVE_abaqus.yaml, which requires some pre-processing before setting up the input file on your end.

Is it something you currently cannot do? Is this related to an issue/problem?

No response

Implementation details

No response

[JTHesse]

I've just added the possibility to define Bulk_Modulus, Shear_Modulus, Young's_Modulus, Poisson's_Ratio or Critical_Value in the mesh input file. Those will override related values in the yaml input:

header: x y block_id volume Bulk_Modulus
-1.5 0 1 1.e-01 2.5e+3
-0.5 0 1 1.e-01 3.5e+3
...

Functions in values f.e.: Critical_Value: 10*t for time-dependent values will be discussed asap.

[oldninja]

Awesome! Thank you so much @JTHesse for this fast turn around!!

I assume each material parameter should have its own column, right? In the mesh input file.

[JTHesse]

Yes, exactly, but you can also use a fixed parameter for the whole mesh. The calculated elastic material parameters will also be available as output variables, to make sure everything is as expected -> Test yaml

[JTHesse]

As the location-dependent variables are supported, I'm going to close this. The other feature will be continued here #159

[CWillberg]

There are several problems in the implementation that has been solved now.