Prior to viewing this example, you should have viewed these two earlier examples:

Compare two or more material model calibrations

Calibration Cases : FE mode

This example was created just to show a different set of steps used to create two calibration cases, with the goal to compare two FE modeling constructs. For the R2023x FD01 release of the material calibration app (Feb, 2023), we have added a new capability to compare two or more material model calibrations. 

This new feature was implemented in a fairly general way.  When used in the FE mode of calibration, this feature can be used to compare two (or more) FE model responses.  I was performing some calibrations of an adhesive layer.  In order to double check some modeling constructs I decided to make two FE models:

1) Use COH2D4 elements and *Elastic, type=Traction to model the adhesive layer.

2) Use CPE4I elements and *Elastic to model the adhesive layer.

I had seen some slightly nonlinear behavior from model #1 and wanted to double check the source of the non-linearity.

Another way this new feature could be used:  Import two different FE models, one coarsely meshed and one finely meshed.  Use the fast-running coarse mesh to do the majority of your calibration activity and then use the fine mesh to do only a validation last step (or a follow-on small amount of calibration).

In the narrated video below, we follow these steps to prepare our calibration:

1.  Import an already prepared single case calibration, named COH_Traction
2.  Create the second case, name it CPE.  Rename the title in the plot dialog to CPE
   1.  This 2nd case is created by copying the 1st case
3.  Change the material model to Linear Elastic
4.  In the Spec Tree, delete the RF2 associated with this CPE case.
5.  Import the Abaqus model file for use in this 2nd case, named dcb_cpe4i.inp
6.  Map the RF2 model response for this model to the test data
7.  Evaluate
8.  Create Results Comparison Plot

This video was created on Jan 6, 2023 using a development version of the calibration app that looks like R2023x FD01 to be released on the public cloud on Feb 11, 2023.

This zip file contains 3 files. It should allow you to recreate everything shown in the video.

COH_Traction.3dxml  (for use with R2023x FD01 version of 3D Experience Platform or later)

dcb_cpe4i.inp

The video above, named Calibration_Cases_FE_mode_2023-01-06.mp4

Back to:   Calibration App New Features in R2023x FD01

Back to:  New Material Model Calibration App in 3DEXPERIENCE Platform

Back to:  Material Modeling and Calibration - An Overview and Curriculum