For some reason, your model has bad convergence towards the solution. You should first try to see what is causing this bad convergence. If you consider that the problem modeled is of such nature you could modify the convergence default settings of Abaqus like described in the following steps and figures:

1) Go to `Step` module

2) Go to the `Other` menu section

3) Select the `General Solution Controls \ Manager` options

4) Choose the step where you have low convergence rate and edit the settings

5) In the `Time Incrementation` tab modify the IA (Iteration attempts) number

You could also try to reduce the initial increment value.

Also, as stated earlier, Abaqus Explicit module could be a solution for problems with small convergence rate (You can successfully use Abaqus Explicit also for static models, despite the fact that the module is designed for modelling dynamic phenomenon).

first have a look if the restrains are correct... ex. not the you are simulating smth non physical.

if everything is correct but you expect severe degradation or similar stuff, use a lower initial increment 10-3, higher number of increments, 200, or used viscous damping, be careful to check results if you go for the last one. If none work ,, try ABQ explicit

For some reason, your model has bad convergence towards the solution. You should first try to see what is causing this bad convergence. If you consider that the problem modeled is of such nature you could modify the convergence default settings of Abaqus like described in the following steps and figures:

1) Go to `Step` module

2) Go to the `Other` menu section

3) Select the `General Solution Controls \ Manager` options

4) Choose the step where you have low convergence rate and edit the settings

5) In the `Time Incrementation` tab modify the IA (Iteration attempts) number

You could also try to reduce the initial increment value.

Also, as stated earlier, Abaqus Explicit module could be a solution for problems with small convergence rate (You can successfully use Abaqus Explicit also for static models, despite the fact that the module is designed for modelling dynamic phenomenon).

Can anyone look at my abaqus model. I am a student and am working on subjecting a concrete slab to vertical point loads and seismic load. But my model shows "too many attempts for this increment". If I remove the vertical load it works. I really need your help. Please reply.

First have a thorough check of your model. In case of model being perfect ,

• Go to step module , click on Other-General Solution Controls-Edit-Step which you created-Go to time incrementation-and change Ia to say 15. By default it is 5 , but 5 is too small for small pretty tough simulations.
• ABAQUS follows certain defaults and these needs to be changed for some bigger problems

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@ ALL

Pay a little attention and contribute to a little this problem too.

https://www.researchgate.net/post/Creep_Testing_Time_of_HDPE?_ec=topicPostOverviewAuthoredQuestions&_sg=FztrIc-Mnvv6-dHbSDD6WrVjjHaN9cpP76BeKiQrcahTRwYMz4CM7lvjP0lwnLFepsiVqZKak1Kuirub.M0w9YNGYBZz9CGh9sUXqisweKJdxEuGKABKQXqZzcEpshLlQDsA36jEADf_T6DucSmp2wexKoKEa6Iv9SFP_pK8

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You can First of all check your Material Properties. Then, if material properties are correct, check interaction properties and if interactions are also ok, then finally try to mesh your model in parts by making partitions. The area of loading should have finer mesh. And if you are getting same error again, then try to remodel your problem.

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Thank you very much Mohammad Zaid

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I agree with Mr. Mohammad Zaid . This problem could be due to inappropriate material properties or contact conditions.

From general menu go through general solution from the tab specify edit the factor IA from 5 to 25

Well, I have faced this problem before. The default iteration 1E-05 is usually enough to converge. The issue is mainly due to interactions assignments. Check boundary conditions, contacts etc.

I accept with you, Mohammad Mehdi Bagheri