Abaqus Error - displacement increment for contact is too big

[akshay85]

Hi,
I am working on a model which consists of 2 concrete slabs connected with 15 steel bars (dowels). Earlier i had connected a simpler model which worked perfectly. However this model gives a bunch of errors.

1) ***WARNING: THERE ARE 9 UNCONNECTED REGIONS IN THE MODEL.

I went back and forth to check if i have left any unconnected parts. However i could not find any.

2) ***WARNING: SOLVER PROBLEM. NUMERICAL SINGULARITY WHEN PROCESSING NODE DOWEL-13.229 D.O.F. 2 RATIO = 116.865E+12

I want the dowels to displace in 2(Y)-direction. Hence i have not constrained them in that direction. However the warning persists.

3) ***WARNING: DISPLACEMENT INCREMENT FOR CONTACT IS TOO BIG.

I have no idea how to correct this error message.

Please HELP.

 

[rstupplebeen]

Try creating a simplified model. If that still does not work it will be a great starting point for this group.

Rob Stupplebeen

https://sites.google.com/site/robertkstupplebeen/