Learning Forum

[Ifexco]

Hello guys Kindly assist. I am not used to coding. If for instance I want to kill all the elements in two separate bodies (flaw_1 and flaw_2) separately and in succession, how do I modify the code below such that the elements in flaw_1 is killed first in a time-step, after which those in flaw_2 are killed in the next time-step. I initially tried having a second Commands (APDL) and changing the element component to be killed to flaw_2, but the second APDL ends up overriding the first, killing only elements in flaw_2. I also tried using the element birth and death icon in Ansys mechanical enterprise but it didn't work. Perhaps, you may suggest to me a different way of doing it.

/com, #
*get,myncmls,active,,solu,ncmls ! cumulative number of load steps
*if,myncmls,gt,0,then ! if this is after the first
cmsel,s,flaw_1 ! ELEMENT component to be checked (This is for flaw 1)
nsle ! nodes on these elements
SELTOL,1.0e-12 ! stay within range below
! #########
nsel,r,s,eqv,234,2000000 ! re-select nodes with results above a value <<<
! #########
SELTOL ! selection tolerance back to default
*get,numnode,node,,count ! how many nodes with result above?
*if,numnode,gt,0,then
esln ! elements with any node selected
*get,numelem,elem,,count
*if,numelem,gt,0,then
ekill,all
*endif
*endif
allsel
*else
! if first load step, have result written to in-memory database
fini
/config,noeldb,0 ! write results into the database
/solu ! continue with solution
*endif
/com, #
/com

[Mike Rife]

Please see the Details of the Commands Object in WB Mechanical - there is an option to chose which load step to apply the commands to. You can then write two commands objects; the first activated at the first load step, the second CO at the second load step.
Mike

[Ifexco]

Thank you Mike. It worked!