*HEADING
 RING BUCKLE EIGENVALUE ESTIMATE  1 - CAXA8H2
*NODE
*NGEN
*ELEMENT,TYPE=CAXA8H2,OFFSET=200
*ELSET,ELSET=ALL
*SOLID SECTION,MATERIAL=MAT,ELSET=ALL
*MATERIAL,NAME=MAT
*ELASTIC
 30.0E6,0.0
*NSET,NSET=NALL,GENERATE
*EQUATION
*BOUNDARY
 NALL,2
*STEP
*BUCKLE,EIGENSOLVER=SUBSPACE
 2, , ,200
*DLOAD
 ALL,P3,1.0
*EL PRINT,FREQUENCY=0
*NODE PRINT ,SUMMARY=NO
U,RF
*MODAL PRINT
*MODAL FILE
*OUTPUT,HISTORY,FREQUENCY=1
*MODAL OUTPUT
*END STEP