You are not logged in. Please login or register.
Active topics Unanswered topics
Forum updated
We have recently updated our forums system, and we have cleared all spam topics and users. In case we accidentally deleted your account, please register again. If you miss a topic you have posted before, please let us know.
Post new reply
Post new reply
Compose and post your new reply
You may use: BBCode Smilies
All fields with bold label must be completed before the form is submitted.
Topic review (newest first)
Dear arjun.vithalkar, please first see ATENA Troubleshooting, 2.1.19 Problems reaching convergence and understanding ATENA convergence parameters for basic related information.
We generally recommend to set the Conditional Break Criteria such that the analysis stops when the convergence errors are large at the end of a step, see ATENA Troubleshooting, 2.4.2 I get the message "The execution is killed due to violation of stop iteration criteria", what does it mean?
I guess you may also be interested in Troubleshooting, 2.2.18 My analysis results do not match the experiment/expectations. How can I improve my model?
If you still have problems/questions, please follow Troubleshooting, 2.1.1 to send us your model etc.
Regards.
Hello,
I'm simulating a four-point bending test on a slab, for which I am using symmetry and only modelling half of the slab. When I use regular Newton-Raphson method (each iteration/tangent) results don't agree with the experimental conditions. Whereas, when I use modified Newton-Raphson method (each step/elastic), there is some similarity with the experimental results.
-Why is there a significant difference between these two methods?
Furthermore, I simulate results using modified N-R, but now, I varied the number of iterations in two different cases. In first case, I used 40 iterations and in second case, I used 100 iterations.
-Which of these two different iteration values should I rely on? What should be an ideal value for the number of iterations to get good results?
