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warnings and errors

warnings and errors

warnings and errors

(OP)
Hello!
As a new user of ABAQUS (the 6.10 version) i have a lot of issues in solving warnings and errors in my analysis.

The problem is a pile model simulation using axisymmetry in a 4-layered ground.

I receive the "negative eigenvalues" warning, the "numerical singularities" in one node warning and the error "too many attempts for this increment" .
I've searched the manual and the internet for solutions, i have tried coarsing and thickening my mesh, i have tried all different combinations of mesh controls and element types but it's still not working. I've checked the deformed model and it's a total mess xD

I also get the "conflicting boundaries" warning which i cleared after removing some boundary conditions on the symmetry axis although i know that's not quite right! I couldn't find any other way to solve that either -- before removing the bc the analysis was aborted because of the overconstraints warnings.

Any advice will be appreciated!

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