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resolving too many attempt error in abaqus
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- čas přidán 15. 08. 2024
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Comprehensive Abaqus Package: • Comprehensive Abaqus P...
Including 39 hours of step-by-step tutorials.
Chapter 9 of the package is related to this tutorial.
Step by step tutorial for using dynamic steps for solving static and quasi static problems and avoiding convergence issues:
• Static and Quasi-Stati...
Don’t hesitate to ask any questions you might have about the explanations presented in this video using the comments below. We try to answer all questions regarding the video details in the comments below.
"Too many attempts made for this increment" is one of the most famous errors of Abaqus. in this video we talk about the cause of encountering this error and then we talk about the methods of resolving and overcoming it.
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Table of content:
- Abaqus structural solvers
- Sources of nonlinearity in the analysis
- Method of solving nonlinear problems
- Primary cause of “too many attempts made for this increment” error
- Resolving “too many attempts made for this increment” error
#Abaqus
#Abaqus_error
Thanks for high quality of your video , like voice that had no noise . And thanks for your complete explanation in different modes of too many attempts error in Abaqus .
I Hope that you release more tutorial videos soon .
Thanks to Mr. Eng. And the very useful information that was posted on the video.
I'm Grateful for your efforts to explain this part which helped me a lot in my Master Thesis, Really beneficial!
Thank you so much
I am grateful for the positive learning environment you provided with me and Thank you so much for sharing your video and assistance in our project
Thank you so much. My problem got solved with your first suggestion itself .
Seriously man!! You're Savior for me Thanks You again
Hi mr mirza bozorg. Your movies are great. I wish you success
Very well prepared and explained. Thank you very much
You are welcome.
Thank you very much for your great explanation. I highly appreciate it. Keep it up. it is perfect.
Thanks, Mr it is a very useful and helpful video. Hope you release more videos. Good Luck!!!!!!
Thank you for such a useful video. It is full with important information
بارك الله فيك و جازاك الله عنا خيرا
It is very helpful. Thanks for the Tutorial! It was so good. I hope you can make more tutorial
thank you for your good explication
the video is very useful
دمت گرم عالی بود مرسی
Hi.
You are welcome.
Please also watch these free tutorials which have related content:
czcams.com/video/Pa-D-qZnAtY/video.html
czcams.com/video/aw-Ym8cVBE0/video.html
Thank you so much
Hi.
You are welcome.
It is very useful. Thank you very much!
Hmmmm,
I would say - check dat and msg files first!
Don't start to play with setting, until you check and fix warnings. There are keys there
Hi.
Most of the Abaqus warnings do not affect the solution and they are only for caution.
Having or not having warnings do not guarantee your solution at all.
There are much more powerful tools and indicators for finding the convergence issues like job diagnostics tool.
Actually resolving convergence issues in a nonlinear FEA can be much more complex that you can imagine.
We have two other free tutorials about how to interpret the warnings.
here are the links to them:
czcams.com/video/1THUIbs-dJw/video.html
czcams.com/video/MkuD1PM45ww/video.html
@FemexIran
1. Max number of increments exceeded.
2. Force/moment equilibrium is not achieved
3. Excessive distortion of elements
4. Excessive rotation in dof at the point
And so on. From my point of view this is really not too bad idea to look in output files to check what is going on in simulation.
I used to work w/o graphical interface, so both mentioned above files are key for problem solving and debugging.
@@user-jw7ki8gv8r I have seen a lot of cases that the analysis was completed even with the mentioned warnings. Because of this I say that resolving them does not guarantee the completion or not completion of the analysis. This is because of the complexity of nonlinear FEA and I do not use the warnings as my main tool to resolve the error.
Very helpful. Thanks for explaining the fundamentals.
hi. your welcome.
Thank you sir for the wonderful video 👍
Great explanation! thank you!!
Thank you so much for your valuable info
Thank you for an extremely useful video
Very helpful video!!
Thanks for the video!
Very informative, thank you.
your welcome.
Thank you very much
Hi.
You are welcome.
thank you
it is very helpfull !
appreciate very useful
thank you for the details.
I just start to build the model for a steel bridge in Abaqus. The bottom and top flange have variable thicknesses while the web thickness is constant all along the girder. I tried to create the parts with solid and shell shapes but still, the job can not run properly.
Is there anyone who succeeded to build a steel girder bridge model?
What do you recommend: create different parts (top and bottom flanges and web) separately and then connect them or create I shaped parts and attribute thickness to each part connect them using tie constraint?
thankyu sir very useful
Hello l have a problem in abaqus when l simulate .
"Machine precision requires a time step greater than 2.22000e-16"
hi.
what is your simulation about ?
have you set the time period less than that value ?
please explain about your modeling in more details.
thanx very usful
very good.
It’s valuable for me too
If i have this error "too many increments are needed"
should i increase the maximum number of increments or decrease the increment size right?
Hi, i have a problem. My analysis is coupled temp-displacement, how can I solve the "too many attempt error"?
hi.
as I mentioned in the tutorial, this error can have a lot of reasons. so to find out the cause of error, your model must be checked.
to resolve the error, you can use our online tutoring service.
for more information, please send an email to me:
mirzabozorg71@gmail.com
hello
Thank you for your great video
This is a problem for everyone that is easy with the movie
How can I have other videos from you?
how can i resolve VALUE FOR PARAMETER NSET CANNOT BE MORE THAN 80 CHARACTERS
Hi.
this error means that the name of a surface or set or every thing else in your model exceeds 80 characters and it is too large. in the Abaqus, the name of everything must be less than 80 characters.
@@FemexIran what should i do now?
@@saadulhaq6572 you must check all of the names in your model and find the names with more than 80 characters and rename them in order to have less than 80 characters.
Hello, How are you.? How do you approach for edge to edge contact in abaqus standard
Hi.
Thank you.
You can define General Contact to account for the edge to edge contact in Abaqus/Standard or Abaqus/Explicit.
@@FemexIran sure will try and come back to you sir.
Thank you for this video. Can you help me more on loading rate technique and mass scale technique for dynamic explicit solution?
hi. you can send email to us for using our paid services. the email is: mirzabozorg71@gmail.com
Thank you so much sir for the video. The next, I am facing error; 157 element have no property definitions. How can I fix this error sir?
hi. this error has two probable sources. the first one is that maybe you have not assigned section to some parts. the second one is that maybe you have not assigned appropriate element type to some parts that is not consistent with the assigned section in property module.
I have a problem with my stress value after plotting the data. The stress value that i get is 2.54e-6 . But it should be 25Mpa. How can i solve this problem? Tq in advance.
hi.
Yes, I can.
In this case your Abaqus model's settings must be checked for finding possible mistakes. If I find the mistakes I can tell you in an online tutoring session. This is one of our services.
Sir, can I send you my abaqus file, I couldn't find the problem, thanks in advance.
hi.
yes of course.
checking models and finding the mistakes and doing modification is one of our paid services.
I have explained how to contact me at the end of this video.
Can you applying in program abaqus
While this video didn't solve my issue (still trying to understand why, perhaps something to do with my student version) but the video is incredible nonetheless and I hope that it at least helped others. Thank you
hi. this video includes some general guides. as this error can be occurred nearly in every simulation that Abaqus/standard solver is used, the way of resolving the error is very case dependent. many reasons can be the cause of occurring this error. you can contact us in order to give you consultancy for resolving your simulation errors. this is one of our main services.
it does not work at all. i do as you told, i use the implicit dynamic ,quasi-static, it does not work at all.too many attempts means you model is not correct.
hi. in some simulations the only choice is the use of dynamic explicit step because the model is highly nonlinear and we must change the solver.
Please, can you help me solve my problem and complete my file in Abaqus, Professor, and thank you
hi. yes you can use our paid services. one of our services is checking models and edit and solve their mistakes and settings. you can contact me via email.
I did what u told in the video but i am still getting this error -"Time increment required is less than the minimum."
Please help
What is your initial and minimum increment size?
@@lollol9876543210 0.001 and 10*e-9
@@swaroopzanke4299 Try increasing the initial increment, say to 0.01. This had worked out for me.
@@lollol9876543210 ok. i will try
thanks
hi sir. if your model has convergence problem you will encounter with one of the errors: " too many attempt" or "time increment required ..." . in mechanical problems, the last way for solving these errors is uisng dynamic implicit step or dynamic explicit step if possible. you can contact me and explain your model in telegram or whats app or by sending email. then we give you solutions.