*HEADING
 L-shaped bracket
 544 continuum element mesh, eigenvalue buckling analysis
*NODE
**
**
*ELEMENT, TYPE=C3D20, ELSET=EALL
**
*NSET, NSET=WALL
**
*NSET, NSET=TIP
*NSET, NSET=QA_TEST_TIP
**
*SOLID SECTION, MATERIAL=A1,ELSET=EALL
*MATERIAL,NAME=A1
*ELASTIC
 71240, 0.31
*BOUNDARY
 WALL,1,6
*STEP
*BUCKLE, EIGENSOLVER=LANCZOS
 1, 0.0
*CLOAD
 TIP,1,1.0
*OUTPUT,FIELD
*NODE OUTPUT
U,
*OUTPUT,FIELD
*NODE OUTPUT, NSET=QA_TEST_TIP
U,
** OUTPUT REQUIRED FOR POSTBUCKLING ANALYSIS:
*NODE FILE
 U,
*NODE FILE,NSET=TIP
 CF,
*ENDSTEP