*HEADING
**
** cylinder indentation test, plane strain, regular mesh 10x30
** material: PUR60 (B), SI units
**
*RESTART,WRITE,FREQ=999
*PREPRINT,MOD=YES
*NODE
  1,   0.,     0.
 31,   0.090,  0.
*NGEN,NSET=BOT
 1, 31, 1
*NODE
 311,  0.,     0.030
 341,  0.090,  0.030
*NGEN,NSET=TOP
 311, 341, 1
*NFILL
 BOT, TOP, 10, 31
*NSET,NSET=LFT,GEN
 1, 311, 31
*ELEMENT,TYPE=CPE4R
 1, 1, 2, 33, 32
*ELGEN,ELSET=FOAM
 1, 30, 1, 1, 10, 31, 30
*ELSET,ELSET=TOP,GENERATE
 271, 300, 1
*ELSET,ELSET=OUT
 1, 271
**
*SECTION CONTROLS,NAME=FOAM,HOURGLASS=ENHANCED
*SOLID SECTION,ELSET=FOAM,MATERIAL=FOAM,CONTROLS=FOAM
 0.180,
*MATERIAL,NAME=FOAM
*ELASTIC
 7.5E6, 0.0
*CRUSHABLE FOAM,HARDENING=ISOTROPIC
 1.0, 0.0
*CRUSHABLE FOAM HARDENING
 0.2000E6, 0.0000
 0.2577E6, 0.0094
 0.2760E6, 0.0258
 0.3053E6, 0.0452
 0.3267E6, 0.0655
 0.3623E6, 0.1084
 0.3891E6, 0.1540
 0.4250E6, 0.2405
 0.4568E6, 0.3812
 0.4738E6, 0.4600
 0.5170E6, 0.6391
 0.5862E6, 0.8570
 0.6503E6, 0.9857
 0.7470E6, 1.1324
 0.9820E6, 1.2965
 1.4702E6, 1.4808
 2.7262E6, 1.6609
 5.3911E6, 1.9000
*DENSITY
 60.,
** 
** SURFACE DEFINITIONS
*NODE,NSET=PUNCHREF
 1000,  0.0,    0.1125
*NODE
 1001, 0.0825, 0.1125
 1012, 0.0,    0.0300
*NGEN,LINE=C
 1001, 1012, 1, 1000
*ELEMENT,TYPE=R2D2
 1001, 1001, 1002
*ELGEN,ELSET=PUNCH
 1001, 11
*RIGID BODY,REF NODE=PUNCHREF,ELSET=PUNCH 
*SURFACE,TYPE=ELEMENT,NAME=FOAM
 TOP, S3
*SURFACE,TYPE=ELEMENT,NAME=PUNCH
 PUNCH, SPOS
*CONTACT PAIR,INTERACTION=INTPROP
 FOAM, PUNCH
*SURFACE INTERACTION,NAME=INTPROP
*FRICTION,TAUMAX=1.15E5
 0.2,
** 
** BOUNDARY CONDITIONS
*BOUNDARY
 LFT, XSYMM
 BOT, ENCASTRE
 PUNCHREF, 1
 PUNCHREF, 6
*AMPLITUDE,NAME=DISP,TIME=TOTAL TIME,DEFINITION=SMOOTH STEP
 0., 0., 0.05, 0.027
** 
** STEP: Step-1
*STEP,INC=500,NLGEOM,UNSYMM=YES
 Step-1
*STATIC
 0.005, 0.025
**
** APPLIED LOAD
*BOUNDARY,AMPLITUDE=DISP
 PUNCHREF, 2, 2, -1.0
**BOUNDARY
** PUNCHREF, 2, 2, -0.02
**
** Relax tolerance from a default of 0.005 to 0.01 because the time and
** space averaging produce values that are very small, thus requiring
** convergence with unnecessarily small residuals. Relax displacement
** tolerance from 0.01 to 0.1
*CONTROLS,PARAMETERS=FIELD
 0.01, 0.1
, 0.0, 
**
*MONITOR,NODE=PUNCHREF,DOF=2
*ENERGY PRINT,FREQUENCY=999
*NODE FILE,NSET=PUNCHREF
 U, RF
*OUTPUT,FIELD,FREQ=100
*ELEMENT OUTPUT
 S, PE, PEEQ, LE
*NODE OUTPUT
 U,
*OUTPUT,HISTORY,FRE=1
*ELEMENT OUTPUT,ELSET=OUT
 MISES, PRESS, PEEQ
*NODE OUTPUT,NSET=PUNCHREF
 U, RF
**
*END STEP
**********************************************
** STEP: Step-1
*STEP,INC=500,NLGEOM,UNSYMM=YES
 Step-1
*STATIC
 0.005, 0.025
*END STEP