Dynamic Analysis with Abaqus, part-01, Introduction to Static and Dynamic Load with Example

[@lt4376]

Very well done! Thorough

[@svnsunarikani8865]

Great very good insights sir...thank you ..looking forward

[@renmas00]

Thanks for the nice presentation

[@maryamghasemzadeh9705]

That was really informative. Thanks

[@arsitech-ltd]

Welcome dear.

[@hephaistion3]

Great job! Thank you!

[@AJ-et3vf]

Awesome video! Thank you!

[@arsitech-ltd]

Welcome dear.

[@mostafaismail43]

Thank you for sharing. Great material.

[@arsitech-ltd]

Welcome dear.

[@chindume]

Thank you for this video. It is very helpful.

[@arsitech-ltd]

Dear, I suggest to go through all video of this playlist.

[@mukunthans3600]

I am trying to learn FEA through your content, Great explanation as usual! That example with the mass pushed and pulled gradually should be quasi-static, right? Also, the time-dependent force plot where force is progressively applied from 0 to 1 sec should be technically quasi-static and as per my understanding we call a system static when the force is either constant or 0. If I am wrong, can you explain where quasi-static fits into FEA?

[@raniaelsebai9889]

thanks for your effort

[@souviksaha3935]

Nice video. Could you share how to take DIF into account in dynamic analyses?

[@三田沙也乃]

Thank you for your good job! Why W load

[@arsitech-ltd]

Dear, For most of cases with this condition dynamic and quasi static analysis give results. Refrence - Concepts and Applications of Finite Element Analysis by Robort D Cook.

[@三田沙也乃]

@@arsitech-ltd Thank you! I will read it!

[@三田沙也乃]

@@arsitech-ltd I have read through the book (Ver. 1989). But I haven't found the equation that you mentioned. Can you please tell me the pages or more details? Thank you!

[@kristiannrtoft2117]

Hello Simtech Would there be any chance of getting the abaqus cae file or a python scprit for abaqus cae file used in the video, i'm studying for a bachelors degree in Denmark and could really use som help with setting up my dynamic analysis

[@arsitech-ltd]

Hello dear, Abaqus file is not available. You can make your own file and if face issue i will try to help.

[@SunnyMishraced]

Dear Sir, I want to simulate an experimental cyclic loading, can I use general static? 2nd question: Infact I am not able to get post peak degradation in load displacement curve for monotonic load itself. I am using CDP model for concrete.

[@arsitech-ltd]

Dear, 1. Yes you can use general static step. 2. Peak degradation mainly depends on material model..and its parameters. Please check your parameters are correct.

[@SunnyMishraced]

@@arsitech-ltd Sir, I provided CDP for concrete plasticity and the default damage parameter for concrete., but post-peak displacement is not going down.

[@shunsuikyouraku5111]

Thank you for video and I have a question. I have a study that moves 5 meters per second. The distance is 11 meters. For tabular amplitude; Time/Frequency Amplitude 0 0 2.2 1 should it be?

[@arsitech-ltd]

Yes if you want to gradually apply the velocity.. not intentionally.

[@alimackani4030]

Thank you very much.

[@arsitech-ltd]

Welcome dear.

[@Spidy-98]

Hello Sir, If I have laods of 80KN, and total time is 10 sec. I want to make a hystersis curve, how i can make my amplitude data?

[@arsitech-ltd]

Dear, Apply a cyclic load and use respective hardning rule. Here you want to apply 80KN load for 10 sec but you not told the cycle of load. You can follow this video to define amplitude load in Abaqus - kzbin.info/www/bejne/qJqkfWaLfsR3hs0

[@Spidy-98]

@@arsitech-ltd sir, I watched your video, My cycle is 3 load cycles per sec. if load is 80, and time is 6 sec, how i can calulate?

[@arsitech-ltd]

Dear, You need to define amplitude with circular frequency of 6*pi to complete 3 cycle in one sec. In step time define 6 sec. In load define 80N, make sure you select above created amplitude in load.

[@nadaeljouchine6474]

Thank you for your video, it was the best explained so far 👍. I have a question concerning concrete, if I want to perform a compression test on a concrete cylinder, could it be a static general study? because the majority of the tutorials tend to use dynamic explicit analysis and that would take plenty of time, especially when I try to simulate reinforced concrete with composite material. Thank you.

[@arsitech-ltd]

Dear, Compression test will be consider as quasi static untill high strain rate involved in it. Someone may use dynamic step if 1. High strain rate involved (load rate is very High) 2. large deformation, so the general static step not able to handle convergence. 3. JC material model not available with static step and implicit step...and someone want to use JC material model. 4. Complex contact condition...so static step not able to handle convergence. Etc.

[@nadaeljouchine6474]

@@arsitech-ltd Thank you I appreciate your timely reply. Thus, in my case, I could do a frequency analysis to compare the natural frequency of the system with the frequency of the loading and then decide whether to perform a quasi-static analysis or a dynamic one?

[@arsitech-ltd]

Dear, In general the procedure you talking about is correct, we can go with it. However, a in a compression test increase load rate technique can be directly impliment up to strain rate of 100/sec or may be Little more. If you can share visuals of your problem on my mail/whatsapp it will be better. Details Available in video discription.

[@nadaeljouchine6474]

@@arsitech-ltd I've sent you an e-mail with further details, and I'm waiting for your response. Thank you for your time.

[@arsitech-ltd]

Replied.

[@leonardopieracci324]

Hi, thanks for the video! I have a question? How can I define the application of the dead load if an explicit dynamic step is present in the analysis? Because in this case I can't introduce a previous static general step in wich I can define it.

[@arsitech-ltd]

Dear, You need to simply apply gravity. Dead load will automatically considered. Create two explicit step. One for dead load another is for working load. Also you can create dead load in general static step and call model+results in explicit step by initial stress parameters. I uploaded video - two stages forming analysis in Abaqus.

[@kaiyang6470]

Hello, can you use this calculation method to use anisotropic materials, or what should be paid attention to when using anisotropic materials

[@arsitech-ltd]

Dear, Method is independent to material. Depends on your loading conditions only.

[@laurenciusnugroho4219]

do you have video tutorial to determine the natural frequency of beam?

[@arsitech-ltd]

Dear, Run frequency analysis. It is very easy with Abaqus. Yes I uploaded a brief tutorial on it - kzbin.info/www/bejne/i6uudZyNYr58f5Y

[@laurenciusnugroho4219]

@@arsitech-ltd Thank you. I really appreciate it

[@haidermumtaz6065]

How can I calculate the frequency of the load?

[@arsitech-ltd]

Its input parameter... generally find by experiment. Once you know input force vs displacement plot you can find how frequently 1 cycle is completed..that is frequency of load

[@revansidiahmath2601]

bro...can you teach Ls dyna...

[@arsitech-ltd]

Dear, I'm Abaqus and hyperwoks user. I can't help im LSDyna.

[@revansidiahmath2601]

@@arsitech-ltd k