Hello Sara Cocchia

time increment required is less than the minimum specified :

If the amount of displacement or force you enter into a piece is greater than the limit or the values ​​entered in Load Abacus are not consistent with the mechanical properties defined in Property Property, this error will be displayed. Otherwise, Go to the Step module and change the value of the minimum increment size parameter to a smaller number (such as 1e-9) in the Incrementation tab of the solder settings you have defined.

"too many attempts too complete this increment error :

In the first step, examine the scope of loading and coordination between the units. In the next step, if the problem persists, as a simple solution, you can reduce the minimum value and the maximum time increment; however, this method is usually not very efficient, and the process of reconnecting with the same error message will be aborted. Since in large forms of deformation, the continuation of the solution leads to the destruction and complete destruction of some elements, you can reduce the elements of the areas in the area or by defining a suitable Damage criterion, remove the above elements from the analysis until No problem to continue.But it's interesting to know that all of the above solutions are not available in some cases, and the problem persists. I advise you to go to Abaqus / Explicit (subject to all contingent solvency and resolution) if you are in control of the use and use of the explicit resolver and the problem conditions allow the use of this resolver.

Good luck

Saman Ahmadi thanks for the answers. Do you think that reduce the dimension of the elements of the shell could help? It’s my thesis job and i’m very concerned because I can’t find any solution

These are the suggestions that are usually made to solve such problems. I guess you'll try the ways you said. Your problem will probably be solved. Otherwise, try other ways.