Two distinct materials, skin and core.

Skin has a target material model of elastic-plastic.

Core has a target material model of hyperfoam+Mullins.

Testing performed on the assembly of materials. (in this example 2 tests)

FE models prepared for each test.

Establish a Best Practice for how to perform a sequential calibration of the two materials.

1. Import test data

2. Import FE models, and map the FE output to test data

   1. On import, select Core material

   2. Optional : On import, select “import material”

3. Evaluate, then Calibrate Core material, use only the OOP test data

4. Edit (update) the Core material model in the two FE models

5. Reload the two FE models, select Skin material while reloading

6. Evaluate, then Calibrate Skin material, use only the InPlane test data

7. Evaluate/Calibrate using all the test data

Looking at the two tests, the through-thickness compression test (OOP_compression) excites dominantly the foam core material, while the tan plastic material just undergoes a rigid body translation (mostly).  Because of this, we choose to calibrate the core material first, using analytical mode (very fast).  

If you need to iterate further on a calibration while in FE mode, you can edit the .inp files and then re-import / reload them.  In order to reload, you cannot change the filename or the location on your hard drive.  This reload feature can be done from models in the 3DExperience platform as well.  The short video below demonstrates how to use this "Reload" feature. 

The zip file below includes all the files needed to reproduce this workflow.