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urgent help Please!! how to solve the error "too many attempts made for this increment" in

urgent help Please!! how to solve the error "too many attempts made for this increment" in

urgent help Please!! how to solve the error "too many attempts made for this increment" in

(OP)
i am applying a load of 50KN gradually on a reinforced concrete beam,

i'm unloading this load using an amplitude to get the loading and unloading versus deflection graph.
i have used concrete damaged plasticity to model concrete.

the problem is with the run , it has reached the maximum load but after few increments in the unloading stage i have got this message "too many attempts made for this increment"
noting the problem was in the loading stage first , but i played a little with the solution controls, so it delayed this message to the unloading stage.
what i have done is as the following:
changed the solution technique from full newton to quasi newton
used discontinuous analysis in the time increment
in search algorithm , i have changed N from default of 5 to 10 and etha(accuracy) from 0.1 to 0.01


in the attached figure, the analysis stops at 0.56029 sec which is in the unloading stage.

what to do?! i need help please

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