*HEADING
 BASIC VERIFICATION - MPC TYPE BEAM with  *BUCKLE
*NODE
1,0.
6,12.
*NGEN
1,6,
*ELEMENT,TYPE=B22, ELSET=EALL
1,1,2,3
2,3,4,5
*NSET, NSET=TWO
5, 
*NSET, NSET=THREE
6, 
*BEAM SECTION,SECTION=L,MATERIAL=MAT, ELSET=EALL
0.5,1.0,0.2,0.2
*BOUNDARY
1,1,6
*MPC
BEAM,5,6
*MATERIAL,NAME=MAT
*ELASTIC
3.E6, 
*DENSITY
1700., 
******************************
*STEP,PERTURBATION
*STATIC
*NODE FILE
U,COORD,
CF, 
*NODE PRINT, GLO=YES
U,COORD,
CF, 
*EL PRINT,FREQ=0
*CLOAD
6,2,-1000.
*END STEP
******************************
*STEP
*BUCKLE
4,
*CLOAD
6,1,-1000.
*NODE FILE
u, 
*ENDSTEP
******************************
*STEP,NLGEOM
*STATIC
0.1,1.0
*CLOAD
6,2,-1000.
*NODE FILE,FREQ=99
U,COORD,
CF, 
*NODE PRINT,FREQ=99, GLO=yes
U,COORD,
CF, 
*EL PRINT,FREQ=0
*END STEP