agash
Structural
- Jul 6, 2009
- 10
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
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