ELEMENT DELETION

Hello everyone,

I am modeling a 2D lattice (wire structure) in Abaqus and applying uniaxial tension. The lattice members are modeled as 2D beam elements (B21). I have defined a ductile damage model under the material definition (*Damage Initiation / *Damage Evolution), and I can visually see some members “break” or lose stiffness during the analysis.

My question is about element deletion for B21 and how it should be reflected in STATUS:

  1. Is it actually possible to trigger element deletion for B21 beam elements (i.e., have elements removed from the model) using section controls?

  2. I tried enabling element deletion via section controls as follows:

*Beam Section, elset=all, material=Al, controls=DeleteControl, section=RECT
1., 0.40207
0.,0.,-1.
** ----------------------------------------------------------------
*Section Controls, name=DeleteControl, ELEMENT DELETION=YES

However, in Visualization, the STATUS output does not change (it remains 1), even though the structure shows clear loss of capacity or broken members.

  • Should STATUS be expected to change for B21 when element deletion is enabled?

  • If not, what is the correct way to (a) delete B21 elements and/or (b) verify deletion for beam elements?

Any clarification on whether this is supported for B21 (and what the correct workflow is) would be very helpful.

Thank you.