Showkat Ahmad
Civil/Environmental
I need to impart the first buckling mode as the imperfections in a beam and perform the non-linear analysis of a steel I section In ANSYS APDL. How can I do the same?
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How can I impart imperfections in apdl and do the non linear analysis
- Thread starter Showkat Ahmad
- Start date
- Status
Erik Panos Kostson
Structural
See search upgeom command and you will get a lot of examples. Also provide us with the some info as per your previous post do we can look at the nonconvergene issue, otherwise we can not help you
Small example on a beam:
Small example on a beam:
Code:
/prep7
!*
ET,1,BEAM188
!*
KEYOPT,1,1,0
KEYOPT,1,2,0
KEYOPT,1,3,2
KEYOPT,1,4,0
KEYOPT,1,6,0
KEYOPT,1,7,0
KEYOPT,1,9,0
KEYOPT,1,11,0
KEYOPT,1,12,0
KEYOPT,1,15,0
!*
K,1,0,0,0
K,2,2,0,0
L,1,2
MAT,1
MP,EX,1,200E9
MP,NUXY,1,0.3
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDE,EX,1
MPDE,NUXY,1
MPDATA,EX,1,,2E+11
MPDATA,NUXY,1,,0.3
SECTYPE, 1, BEAM, RECT, , 0
SECOFFSET, CENT
SECDATA,0.05,0.05,0,0,0,0,0,0,0,0,0,0
SAVE
LESIZE,ALL,0.1
LMESH,ALL
SAVE
FINISH
/SOL
!*
ANTYPE,0
FLST,2,1,3,ORDE,1
FITEM,2,1
!*
DK,1, ,0, ,0,ALL, , , , , ,
FK,2,FX,-1
/STATUS,SOLU
SOLVE
FINISH
/SOLUTION
ANTYPE,1
!*
!*
EXPASS,0
!*
BUCOPT,LANB,5,0,0,CENTER
/STATUS,SOLU
SOLVE
/prep7
UPGEOM,0.0001,1,1,file,rst
/SOL
!*
ANTYPE,0
SOLVE- Status
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