FINISH
/CLEAR,NOSTART
/PREP7
L=100
E=200E5
K,1,0,0,,
K,2,L,0,,
LSTR,1,2,10
ET,1,BEAM188
SECTYPE,1, BEAM, RECT
SECDATA,10,10,
MP,EX,1,E
MP,PRXY,1,0.3
LMESH,ALL
!******************** Static analysis **********************
/SOLU
ANTYPE,STATIC
PSTRES,ON
D,1,ALL,0
F,2,FX,-1
SOLVE
FINISH
!******************** Linear buckling analysis **********************
/SOLU
ANTYPE,BUCKLE
BUCOPT,LANB,3
MXPAND,ALL
SOLVE
/POST1
SET,1,1
/VIEW,1,,-1
PLNSOL,U,SUM
!******************** Non-linear buckling analysis using UPGEOM **********************
FINISH
/PREP7
UPGEOM,0.1,1,1,file,rst
/SOLU
D,1,ALL,0
F,2,FX,-5E6
ANTYPE,STATIC
NLGEOM,ON
NSUBST,100,10000,100
OUTRES,ALL,ALL
SOLVE
/WINDOW,1,LEFT
/WINDOW,2,RIGH
/POST1
PLNSOL,U,SUM
/WINDOW,1,OFF
/WINDOW,2,ON
/NOERASE
/POST26
NSOL,2,2,U,Z,UZ_node2
PLVAR,2