moment in the joint of pile and foundation

[mojtaba pourgholami]

hi
I'm modelling a soil with a pile-raft foundation and I want to export the moment in the joint of pile and foundation in abaqus.

 

[FEA way]

Use XY Data features for that. You can save and plot moment values for selected nodes. Either create a node set with history output request for moment or create XY Data from Field Output and select nodes in viewport manually.

 

[mojtaba pourgholami]

Which output should be enabled in the output field?

 

[FEA way]

You should request the variable called RM - reaction moment. There are 3 components of this variable (in 3 rotational direction).

 

[mojtaba pourgholami]

Should I use a freebody for my section؟

 

[FEA way]

As a mechanical engineer I don't know much about soil mechanics but if it's possible to analyze the reaction forces in such, probably sort of elastic, foundation manually with sufficient accuracy then it would be good to do it in order to verify your results.

 

[Erik Panos Kostson]

Yes to get the total moment acting on a 3D cross section (e.g., a 3D pile made/meshed with HEX elements) use the freebody cut tool.

See the help manual:
67.1 Resultant forces and moments on free body cuts in Abaqus/CAE

or :

http://chamilo2.grenet.fr/inp/courses/ENSE3A13EMTAAP0/document/Tuto_ABAQUS_-_Ergot_de_support.pdf

 

[mojtaba pourgholami]

Can you tell me more?
In your opinion,how can I to get the connection rigidity?