Hi all,
Please, would someone help me with that step. Actually, when I submit my model to be analyzed, the time of analysis is very short (less than a minute).
So, I would like to make it much longer in order to give me a reasonable results. Any advice to deal with that?
Note: I attached two pictures for that step.
Kind regards,
Hi Ahmed,
I think try to increase the no. of increments to 1000 and the why the maximum increment size is 1, it can be bit higher.
Hi Bala,
Thanks for your answer. Regarding the max. increment size, how much do you think I can increase the value? For example, can I make it 10?
Hi Ahmed,
When you said "make it longer in order to give you reasonable results", did you mean you want to have more frames (steps of frame) in your odb results?
Hi Xiangxiong,
The thing is, when I submit the model to be analyzed, I get unreasonable results after about 1 min. because the time of analysis is short and therefore the subjected load happens like a sudden impact.
In order to overcome this problem, time analysis has to be longer.
So that's what I want to do. But, I do not know how to deal with time period step to make it longer.
Regards,
Hi Ahmed,
I am not sure I totally understand your statement. There are two locations where you can set time step in Abaqus. The first one is in your attached pictures in STEP module. If you have unreasonable setting, let's say, too large time increment, the job will be terminated due to the convergence issue.
The second place is in the output definition, which is also in STEP module, this setting controls how long you would like to wait to see the next frame of your results in odb file. This setting will not effect the calculation results. If you select a large increment, you probably miss some key frames. However, if you set the increment too small, you will end up with a very huge odb file including hundreds of frames.
For your case, I would suggest you decrease your time increment in output definition. By doing that you will have more frames which can allow you figure out what happens at the end of 1 mins.
Hope these could help.
Hi
I have a same problem. when i increase the time period and reduce the max time increment the results are reasonable .(in my model there are some contact and i define contact control because of unconvergence problem) why in general static time period is important while actually its shouldn't effect on static problem?
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