{"id":371829,"date":"2024-07-14T23:21:50","date_gmt":"2024-07-14T23:21:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/incremental-static-analysis-in-ansys-mechanical-apdl\/"},"modified":"2024-07-15T12:18:52","modified_gmt":"2024-07-15T12:18:52","slug":"incremental-static-analysis-in-ansys-mechanical-apdl","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/incremental-static-analysis-in-ansys-mechanical-apdl\/","title":{"rendered":"Incremental static analysis in ANSYS Mechanical APDL"},"content":{"rendered":"

Hi ANSYS community,<\/span><\/p>\n

I am trying to run incremental static analysis in ANSYS Mechanical APDL. I am not sure how to write the code using a loop command (using “*do”). I need to write a loop command (rather than directly solving by defining the number of subsets etc) because after each solved step, I need to review the stresses and strains in the model and use the ekill command if the threshold is exceeded.<\/span><\/p>\n

A short example of my script is below. I like to apply a displacement of 20mm to the selected nodes in 100 steps. However, in my current code, in the first load step the 20mm is applied, rather than 20\/100 = 0.2mm.<\/span><\/p>\n

Could someone please advise how I can correct my script?<\/span><\/p>\n

 <\/p>\n

Many thanks,<\/span><\/p>\n

Anita<\/span><\/p>\n

 <\/p>\n

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Apply load on selected nodes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<\/span>
NSLA, R,1<\/span><\/span>
NSEL,R,LOC,X,-100, 100<\/span><\/span>
NSEL,R,LOC,Y,300<\/span><\/span>
NSEL,R,LOC,Z,27<\/span><\/span>
CM, n0, NODES<\/span><\/span>
D,n0,UY,20, , , , , , , , , <\/span><\/span>
ALLSEL,ALL<\/span><\/span>
!*<\/span><\/span>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Define Solution Controls !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<\/span><\/span>
\/SOLU<\/span><\/span>
!total number of steps for solve<\/span><\/span>
    steps=100<\/span><\/span>
    TIME_END=1<\/span><\/span>
    timeinc=TIME_END\/steps<\/span><\/span>
    time,timeinc<\/span><\/span>
    solve<\/span><\/span>
*do,ICOUNT,1,steps-1<\/span><\/span>
  \/solu<\/span><\/span>
  allsel,all<\/span><\/span>
  time,timeinc*ICOUNT+timeinc<\/span><\/span>
  solve<\/span><\/span>
  finish<\/span><\/span>
*enddo<\/span><\/span><\/span><\/span><\/p>\n","protected":false},"template":"","class_list":["post-371829","topic","type-topic","status-closed","hentry","topic-tag-apdl"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t