i have used damaged plasticity model in abaqus to represent concrete for RC beam modelling, i have got good deflections compared to literature.
but when using smeared cracking model for the same RC beam, i get an error message before the completion of the step "too many attempts made for this increment"
i have used a static general step in both models, it worked well when using concrete damaged plasticity but didn't when used concrete smeared cracking
any recommendations on material model or on step controls
Check out this paper, you may have some idea about smeared cracking and damaged plasticity models.
I recommend using DPC constitutive model for modelling reinforced concrete members in Abaqus that subjected to compression and tensile forces such as beams, where a convergent problem may arise with smeared model due to issues in defining tension stiffing parameters. Also, the DPC model considers the degradation of the elastic stiffness induced by plastic straining both in tension and compression.
Yasmeen Ghassan Could you please share the concrete parameters you used so that we can compare and check? It could be du to the cracking (tension parameters)
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