Why stress output (S33) greater than CDP input data?

[Fernaldy]

Hi
I try to make a spun pile connection with the pile cap.
My input data for the CDP is 52 MPa, but I try to plot the result for S33 is 83 MPa. Can someone explain this kind of problem?

 

[FEA way]

Can you attach a picture of material definition window or list the parameters (input data) of your CDP model ?

 

[Fernaldy]

@FEA Way i use to input the Density, Elastic, and CDP. In CDP, I used the plasticity, compressive behavior, and the tensile behavior

 

[FEA way]

And what values did you use for parameters of plasticity, compressive and tensile behavior ? Can you list them ?

 

[Fernaldy]

@FEA way this is my input for the CDP model

 

[Mustaine3]

Use Tools -> Query -> Probe Value to check the results at the integration points of the element with the maximum stress. I guess the difference comes from a coarse mesh and the result extrapolation in postprocessing.

 

[Fernaldy]

@FEA way okay thank u so much mister. Anyway, can the confinement effect cause this problem? Just wondering my model has the confinement for the spun pile model

 

[FEA way]

Please share a picture of your model (geometry with mesh). This will help us find the reason of the problem.

 

[Fernaldy]

@FEA way this is my model, mister.

https://res.cloudinary.com/engineer...594131812/tips/IMG_20200707_212254_hiudep.jpg

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[FEA way]

Try refining the mesh and make sure that all interactions between parts are properly defined. Also turn off results averaging before reading stress values.