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Ductile fracture-enriched element

Ductile fracture-enriched element

Ductile fracture-enriched element

(OP)
I would like to study a ductile fracture.
In this purpose, I have defined the geometry of the model plus a XFEM crack.

I have defined the three following features in the "Material module":

1-Elastic: (Young’s modulus and Poisson’s ratio)

2-Plastic: (Yield stress and Plastic Strain: 8 lines)

3-Ductile damage: (Fracture strain, Stress triaxiality, Strain rate) ;and use damage evolution (displacement at failure)

When I run the problem, I have the following error message:
The damage model has to be specified for enriched element 1 instance part-1
" " (the same for element 2 until element 12)
Analysis Input File Processor exited with an error.

Why do I have this error message ?
Thanks.

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