Dear FEAP Users,
i successfully ran a stent simulation by using "small" displacement. After that i changed "small" to "finite" and ran the same program one more time. At one point of the simulation the program stops running. The Outputfile shows, that no convergence could be found at that point. The pictures of paraview also contain no hint, why the program stops running.
Till now i tried to change the penality and tolerance value. I also read about the "14.11 Augmented Solutions" and tried to implement it in my program, but iam not sure if that would help.
Can somebody give me a hint, about what i had done wrong? Thanks for all your help.
Here is some of the code i used, i will also try to attach my files.
MATE 1
SOLI
FINIte
ELAS ISOT 1.e5 0.25
MATE 2
SOLId
FINIte
ELAStic ISOTropic 2.1e9 0.3
...
SURFace 1!Master
POINT
FACEts
SURFace 2!Master
QUAD
FACEts
PAIR 1
NTOS 1 2
SOLM PENA 1e3 ! At start 2e3
AUGMent
TOLE,,1e-4 1e-4 1e-4 !At start:1e-5 1e-5 1e-5
...
BATCh
prop,,1
END
2 2
0,0 1,1
!Without Augment Solution
BATCh
dt,,0.001
loop,,150 ! RLT
TIME,,T_max
PVIEw,time
CONTact CHECk
LOOP newton 10
TANGent,,1
NEXT newton
NEXT ! RLT
END
BATCh
dt,,0.0005
loop,,1700 ! RLT
TIME,,T_max
PVIEw,time
CONTact CHECk
LOOP newton 10
TANGent,,1
NEXT newton
NEXT ! RLT
END
