How to get plate thickness based on element id?

Nathanvanthof

Hi everyone,

I have a plate model with several plates of different thicknesses. In postprocessing I'd like to know the thickness of an element based on its id. Does anybody know how to calculate/retrieve it?

from ansys.dpf import post

simulation = post.load_simulation('file.rst')
elemental_stress = simulation.stress_eqv_von_mises_elemental()
selection_ids = elemental_stress.index[0].values
selection_id_0 = selection_ids[0]

# How to get the thickness of the selected element?
print(selection_id_0)

Thank you!

Peter

I currently use the dpf

op = dpf.operators.result.mapdl_section()               # operator instantiation
op.inputs.properties_name.Connect("Thickness")
op.inputs.data_sources.Connect(data_source)
mmv = op.outputs.properties_value.GetData()

Nathanvanthof

Hi Peter,

Thanks for your quick answer.
I changed the Connect to connect in your line 2 because I was getting this error:

AttributeError: 'properties_name' object has no attribute 'Connect'

Now my code looks like this:

from ansys.dpf import post
from ansys.dpf import core as dpf

simulation = post.load_simulation('file.rst')
elemental_stress = simulation.stress_eqv_von_mises_elemental()
selection_ids = elemental_stress.index[0].values
selection_id_0 = selection_ids[0]

op = dpf.operators.result.mapdl_section()
op.inputs.properties_name.connect("Thickness")
op.inputs.data_sources.connect(data_source)
mmv = op.outputs.properties_value.GetData()

Now I'm getting this error:

op.inputs.data_sources.connect(data_source)
NameError: name 'data_source' is not defined

Just to be sure we're talking about the same thing: I have an rst file I wish to analyze outside of the workbench environment. I think that might be causing the data_source error?

Pernelle Marone-Hitz

Hi both!
@Peter seems to be using Mechanical DPF (Iron Python convention -hence the capital C in Connect) whereas @Nathanvanthof you are using PyDPF (CPython convention - hence small c in connect).
@Nathanvanthof , you've referenced your result file to use in DPF Post line 4, but starting from line 9 it is DPF Core that you are using. The error message with missing data_sources is that you have not linked your result file here.

Peter

Hi Nathan,
as @Pernelle Marone-Hitz mentioned I am using Iron Python within mechanical.
The data_source error is not causing the error because it is outside from mechanical, it is because it is not defined.