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Pressure Load - Unstable results

Pressure Load - Unstable results

Pressure Load - Unstable results

(OP)
Hi everyone,

I am trying to put pressure load onto two plates in order to compress a deformable and compressible object between the two plates. However, when I run ABAQUS it does not finish successfully and after a while it gives me the following error:

***ERROR: TOO MANY ATTEMPTS MADE FOR THIS INCREMENT

I don't seem to be able to find the problem. I appreciate any help/input/feedback.

Thanks,
Navid

A very brief summary of my ABAQUS input file:
** I eliminated the geometries for the sake of space.
** Surfaces
*RIGID BODY, REF NODE = 90010, ELSET=LeftPlateELSET
*RIGID BODY, REF NODE = 90011, ELSET=RightPlateELSET
*SURFACE, NAME = LeftPlateSurf, TYPE=ELEMENT
LeftPlateELSET, SPOS
*SURFACE, NAME = RightPlateSurf, TYPE=ELEMENT
RightPlateELSET, SPOS

** Contacts
*CONTACT PAIR, INTERACTION=FACE1, small sliding, TYPE=SURFACE TO SURFACE
object,LeftPlateSurf
*SURFACE INTERACTION, NAME=FACE1
*FRICTION
0.000000
*surface behavior, no separation
*CONTACT PAIR, INTERACTION=FACE2, small sliding, TYPE=SURFACE TO SURFACE
object,RightPlateSurf
*SURFACE INTERACTION, NAME=FACE2
*FRICTION
0.000000
*surface behavior, no separation

** Loads and STEPS
*STEP, NLGEOM=NO
*STATIC
0.25
*CONTROLS, PARAMETERS=TIME INCREMENTATION
33,35,31,39
,,,,,0.25,
*SOLUTION TECHNIQUE, TYPE=QUASI-NEWTON
*CONTACT CONTROLS, AUTOMATIC TOLERANCES
*DSLOAD
RightPlateSurf, P, -10
LeftPlateSurf, P, -10

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