Just found your channel today. Must say it is phenomenal content and is really useful for the research I am conducting.

@hnrwagner

3 жыл бұрын

thanks ! if there is any study regarding shell buckling which you want to see , let me know :)

what kind of tutorial you want to see next ? comment below !

@liboyan4897

3 жыл бұрын

Dear Prof. Wagner, how about Co-Simulation in Abaqus using Python file?

@waibhawkumar8714

3 жыл бұрын

Hello Dr. Ronald Wanger, Kindly make tutorial video of adding geometrical imperfection in heat-transfer analysis and coupled load-temperature analysis.

If I could ask, how did you do the results "flattening" from cylindrical shell, as shown at 5:00? Thanks in advance, Milovan

@hnrwagner

3 жыл бұрын

You mean how to plot the deformation field as a contour plot? All data for this are given in the github link of the video description

@milovantelefon6853

3 жыл бұрын

@@hnrwagner Yes. Thanks for answering! I will look for data on github. Have a nice day 🙂

i have create a github repository with all relevant data from the video: github.com/hnrwagner/Fourier_to_imperfection

How to plot the deformation field as a contour plot? Can you create a video tutorial? Thanks In addition, can a conical shell be drawn with a similar diagram?

@hnrwagner

Жыл бұрын

Look here is everything you need: github.com/hnrwagner/Fourier_to_imperfection

Dear Dr. Ronald Wagner if we have 2 steps in a job, the first step is a static, general analysis and the second is static, Riks. so how can we apply the imperfection for only the second step in this job? Thank you for your help!

@hnrwagner

2 жыл бұрын

what kind of imperfection? I think an eigenmode imperfection is not possible in this manner, you can use dimple imperfections however, also i am not that used to using riks, mostly use abaqus standard.

@CuongNguyen-tt4jp

2 жыл бұрын

Dear@@hnrwagner The imperfection obtained from linear buckling. If we use *IMPERFECTION code to run, this code will apply for both static, general (step 1) and static, Riks (step 2). So how to apply it for only step 2?

@CuongNguyen-tt4jp

2 жыл бұрын

Dear@@hnrwagner do we have any subroutine to replace the *IMPERFECTION code when running static, Riks analysis? Best regards,

Dear Dr. Ronald Wagner, hello, can you please share the method or script to get the model element.txt?

@hnrwagner

Жыл бұрын

dont have a script for this file, just copy the data from the input fiile into text using same format

@NanCheng520

Жыл бұрын

@@hnrwagner Hello, I have a question, how to modify the mesh density of the model in the part of importing the new imperfect shell into ABAQUS? Need to import new elements.txt in INP file?

@hnrwagner

Жыл бұрын

@@NanCheng520 yes you need another element.txt

@NanCheng520

Жыл бұрын

@@hnrwagner Dr. Ronald Wagner, hello, how can I ensure that the input elements.txt is in the correct format? How can I ensure that the input Nodes.txt corresponds to the elements.txt? After inputting the new elements.txt, the wrong model will appear when importing the model in ABAQUS.

Hi Doctor Ronald, i'm doing a simulation case of riser's flexion on the ocean, for academic purpose, i would like to credit you for your material. But could you help me ? i'm stomped here. I was looking onto your code and i didn't understand why you multiplicated x to 1.016666 (i dunno where that constant came from), to determine the z coordinate. If you can give me that assistance it is gonna help me a lot.

@hnrwagner

7 ай бұрын

Cant say unfortunately anymore , its like 10 year old code already

sir, you are just working on shell buckling?

@hnrwagner

3 жыл бұрын

yes, mainly shell buckling but also imperfection sensitivity and material failure. I hope i can encourage more people to research shell buckling, it is very interesting and still a lot of work needs to be done.

@Pishgul

3 жыл бұрын

@@hnrwagner I am also working on composite materials and I really like to work on the failure meanwhile. Damage and crack propagation and the failure criteria and etc. I was wondering if we can have collaboration in case you are interested in