*HEADING
ES68SXD8: FOUNDATION TYPE F  [S8R]
*PREPRINT,ECHO=YES
*PART, NAME=SHELL_EL
*NODE
 1,0.,0.
 3,7.,0.
 7,0.,7.
 9,7.,7.
*NGEN,NSET=ALL
 1,3
 7,9
 1,7,3
 3,9,3
*ELEMENT,TYPE=S8R, ELSET=EALL
 1,1,3,9,7,2,6,8,4
*SHELL SECTION,MATERIAL=A1, ELSET=EALL
 2.,3
*END PART
*ASSEMBLY, NAME=ONE_SHELL
*INSTANCE, NAME=SHELL_EL-1, PART=SHELL_EL
*END INSTANCE
*END ASSEMBLY
*MATERIAL,NAME=A1
*ELASTIC
 3.E+6,0.3
*FOUNDATION
 ONE_SHELL.SHELL_EL-1.1,F,300.
*STEP,PERTURBATION
*STATIC
*BOUNDARY
 ONE_SHELL.SHELL_EL-1.ALL,1,2
 ONE_SHELL.SHELL_EL-1.ALL,3,,-0.1
 ONE_SHELL.SHELL_EL-1.ALL,4,6
*EL PRINT,FREQ=0
*NODE PRINT
 RF
*END STEP