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ABAQUS nonlinearity problem

ABAQUS nonlinearity problem

ABAQUS nonlinearity problem

(OP)
HI,im new in this forum and hope that someone will help me out.
let me introduce my problem,im trying to modélise a cylinder with an internal and external pressure with a ogden potention methode (or whatever potentiel method) in a nonlinearity problèm,but whatever i do,i always has an error saying:
"the système has.....negatives eigenvalues" followed by "excessive distortion at a total of (value) integration points in solid elemnts" and the système stop with an error saying "too many increments for this step"

I tryed to put more element but it doesnt change the problème.Im new with abaqus and trying to sort out this problem for more than 1 week coz i need to modelise an anevrism loaded with pressure but i couldnt sort it out and badly need an help.i will attach my cae file coz i dont know if i have to tick a particulary box,or my boundart conditions are faulse.
i just modelise a 1/4 of the cylinder due to symetrie
thanks in advance

RE: ABAQUS nonlinearity problem

No cae file has been attached

corus

RE: ABAQUS nonlinearity problem

(OP)
thanks for your quick reply corus.
I trying to upload the file but couldnt.
the file size is 144Mo,is it why i couldnt?is there any possibily to upload it?
thanks alot

RE: ABAQUS nonlinearity problem

(OP)
here is the cae file,
thaks

RE: ABAQUS nonlinearity problem

It says it cannot find the link. You can reduce the size of the cae file by removing the mesh, or alternatively just uploac the .inp file.  

corus

RE: ABAQUS nonlinearity problem

(OP)
sorry,here is the working link to download my cae with mesh in case the element i choosed is not good for this part.

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