Abaqus Girder Analysis

[Abedalhameed A Habashneh]

I have a prestressed girder that I am applying a displacement at different points to determine the capacity of the girder at those points, the regions around the points of study have finer mesh than the other regions, after running the job, it aborts due to too many attempts made for this increment, the force displacement curve after aborting consists of the elastic region, the point where cracking starts but it does not show the peak load or the softening behavior, what can i do to make it give full kind of accurate results?

Notes:
mesh is applied on the girder, deck, and the reinforcements, at regions of interest its 3, for others its 5, initial step is 0.001 and maximum is 0.1.

 

[FEA way]

More details would be needed to advise something. Like what are the boundary conditions, loads, interactions and material models ? Some screenshots would help if you can't share the files (that would be best, of course).

 

[Abedalhameed A Habashneh]

boundary conditions are on the supports, and no loads just the applied displacement, as for the interactions are mostly ties. material models i cant share