Reply To: XFEM Crack growth of internal crack in a 2D plate

[Jose Mishael C J]

Hi,

Thanks for the answer.

I haven't provided my entire code in the question. I am using XFENRICH command to create the enrichment zone in my model. The level set values are computed only if the enrichment zone is defined. In my case, the level set values for the initial crack are computing successfully. The problem is only during the fatigue crack growth. This is why I mentioned about the possibility to know the APDL development restrictions regarding multiple crack tips/fronts in XFEM based fatigue crack growth. The snippet of my code which is relevant for XFEM based study can be seen below.

! Define enrichment identification
! XFENRICH,EnrichmentID,CompName,,SING,RADIUS,SNAPTOLERANCE
XFENRICH, ENRICH1, TESTCMP, , SING, 0.0

! Define LSM values for cut elements
! Signed distance functions of the nodes of the intersected base mesh elements
XFCRKMESH, ENRICH1, M200EL1, M200ND_CRACK1

XFLIST

Where TESTCMP is the component representing elements in the enrichment zone, M200EL1 is my component for mesh200 elements of the crack and  M200ND_CRACK1 is the component containing my crack fronts/tips.

Can you please provide any suggestions which are not explained in APDL Fracture analysis guide?

Thank you.

Regards,

Jose Mishael