*HEADING
 FRICTIONAL CONTACT BETWEEN A DEFORMABLE BLOCK OF C3D8R ELEMENTS AND
 AN ANALYTICAL RIGID SURFACE WITH COULOMB FRICTION MODEL
**
** DEFORMABLE ELEMENT
**
*NODE, NSET=NELEM
**
*NSET, NSET=NTOP
*NSET, NSET=NBOT
**
*ELEMENT, TYPE=C3D8R, ELSET=ELEM
*SOLID SECTION, ELSET=ELEM, MATERIAL=METAL
 1.,
**
*MATERIAL, NAME=METAL
*ELASTIC
 3.E7,0.33
*DENSITY
 7.3E-4,
**
*NODE, NSET=REFNODE
**
*ELEMENT, TYPE=MASS, ELSET=RMASS
*MASS, ELSET=RMASS
1.0,
**
*BOUNDARY
201,1,6
**
*INITIAL CONDITIONS, TYPE=VELOCITY
NELEM, 1, 200.0
*INITIAL CONDITIONS, TYPE=STRESS
ELEM, 0.0, -2000.0, 0.0
**
*SURFACE, TYPE=CYLINDER, NAME=RSURF
START, 0., 10.
LINE, 20., 10.
*SURFACE, TYPE=ELEMENT, NAME=SELEM
ELEM, S1
*SURFACE, TYPE=ELEMENT, NAME=SLOAD
ELEM, S2
**
*RIGID BODY, REF NODE=201, ANALYTICAL SURFACE =RSURF
**
*SURFACE INTERACTION, NAME=RSUR_PM
*FRICTION, USER=COEFFICIENT, PROPERTIES=1
0.15,
**
*ELSET,ELSET=QA_TEST_All_ELSETS_AUTO
ELEM, RMASS
*NSET,NSET=QA_TEST_All_NSETS_AUTO
NELEM, REFNODE
**
*STEP
*DYNAMIC,EXPLICIT
,0.001
**
*CONTACT
*CONTACT INCLUSIONS, ALL EXTERIOR
*CONTACT PROPERTY ASSIGNMENT
SELEM, RSURF, RSUR_PM
**
*DSLOAD
SLOAD, P, 2000.0
**
**  Some typical output requests.
**
*RESTART,TIMEMARKS=NO, WRITE, NUMBER=4
*FILE OUTPUT, NUMBER=4, TIMEMARKS=YES
*ENERGY FILE
*NODE FILE
 U,
**
*OUTPUT,FIELD,VARIABLE=PRESELECT,NUMBER INTERVAL=4,OP=NEW
*OUTPUT,HISTORY,TIME INTERVAL=2.5e-4,OP=NEW
*NODE OUTPUT,NSET=QA_TEST_All_NSETS_AUTO
 U, V
*OUTPUT, FIELD, NUMBER=4, TIMEMARKS=YES
*NODE OUTPUT,NSET=QA_TEST_All_NSETS_AUTO
 U, V
*ELEMENT OUTPUT,ELSET=QA_TEST_All_ELSETS_AUTO
 S,
*END STEP