Finite Element Analysis Explained | Thing Must know about FEA
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- Опубліковано 6 лип 2024
- Finite Element Analysis is a powerful structural tool for solving complex structural analysis problems. before starting an FEA model you need to know how it works so you know the results are derived. However, if you look at the math behind Finite Element Analysis it can be very daunting.
Luckily you do not need to do Finite Element Analysis from first principles, but there are things that you need to know. this video covers some of the things you need to know.
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In the world of mad data scientist there exist structural engineers preserve the beauty of engineering by some wonderful video tutorials
Thank you for your support and kind words!
@@BrendanHasty sure sir these days a little bit over confidence have taken over every body by the abundance of data and relaxing Ai innovations still iam struggling to write a fem code in basic numpy library and the strugle goes on of years to connect the global stifness matrix even though iam an mechanical based engineer i love civil concepts but a displine of engineering is only by dedication to make some tutorial with no expectations or returns a great job sir. the intervention of pinns as neural networks could soon dominate fem concepts but still traditional methods are the work of beauty to account everything into the knowledge of engineering
You don’t understand how helpful this video is for my project. Thank you!
Hi Benji, glad that I could help. Thanks you for the support.
Hi Brendan. I was literally just reading about FEA! Huge fan of the channel.
Hi Christian, that was great timing for me. Thanks for the support.
Great Video!
Please suggest any good materials for learning the essentials of FEA and overall Structural Analysis and Design
Fantastic, BRAVO
what are you using to edit your videos and creating 3d pictures on the screen?
You learn something new everyday. Great video!
Hi Austin, constantly learning is the way to sucess.
Very helpful insights. Keep going Brendan.
Thanks mate!
Do you teach structural modeling/software analysis in your pattern ?
Thank you
Hi Brendan,
Thank you very much for this great summary on FEA. As you seem very familiar with the method, that would be interesting to have your thought about how you model complex phenomenom like imposed deformations in reinforced concrete structures (like temperature changes or shrinkage). Thanks again for your work.
Thanks for your advice Hadrien! I've recorded a FEA 2 about tips on using the analysis, maybe I should do another video to cover the issues you suggested.
@@BrendanHasty Hello would you explain these fundamental s to an artist particularly colossal monument designers like sculptors who's figurative works tend to be more complex.
Do you guys know some well prepared/explained case studies for static FEA? I'd like to hear the interpretation, walkthrough start-finish, mesh adjustment and above all the results explanation. Not simple cantilevers, cubes and what not. Real life examples of loaded steel supports, stands, machine parts. I'm having hard time finding what I'm looking for :(
I would argue that 2D elements are actually harder to work with, although they more easily give rotation information. With 3D elements, you will find many more singularities in you model, which are actually physically there. With 2D elements, these are glossed over. Do you compare a lot with actual strength and fatigue tests?
Thanks Brendan, great video :))
Thank you Will for your support!
Hi Brendan, let say in my universities I didn’t take this FEA module, is it a really big deal for me to become a structural engineer?
Great video Brendan. I would only want to add that what could be a great follow up to this video, in my opinion as a recent graduate, would be one in which you talk about and give some pointers on how to learn, what to learn and the extent of what one has to learn with respect to FEA. Otherwise great content, cheers.
Thanks for your support Takunda! Great advice, I have prepared and recorded FEA 2 😀
@@BrendanHasty Great! I'll be looking forward to it.
Once again great information provided. Nit sure if I'll have the time to learn this program due to increasing work but will someday. Keep up the good work.
Malik from Barbados
Thank you Malik for your support always! I appreciate it, mate!
I agree, 3D FEA is so complicated. It is hard to verify if your results are correct. Also, its analysis time increases as your mesh size decreases. If you are using Abaqus, the modelling itself takes considerable time since you have to model the parts one by one then assemble them. Ansys is more a user friendly than Abaqus but also requires experience and time for the analysis.
Not sure how eurocode works. But, ACI 318 recommends reducing the moment of inertia for the cracked section, instead of Young’s modulus.
I suppose it’s all the same though, since Young’s modulus and moment of inertia both carry the same weight in the stiffness matrix.
What a great video. I don’t think anyone learns FEA in one semester. FEA is a lifetime of learning. Keeps us from getting bored as our careers progress.
Hi Ryan, for a plated model it is harder to reduce the moment of inertia as it is a geometry governed. The only difference youngs modulus would be axial shortening.
@@BrendanHasty This is great to hear a reply, thank you!
I realize now that we should reduce Young’s Modulus for Plate and Shell elements; in order to maintain correct geometry.
It is up to the designer whether to reduce E or I for beam/column elements, based on what they’re checking?
I remember now that rod elements only include E and A in the stiffness matrix.
@@ryanharris6090 some FEA programs, such as Oasys GSA (disclaimer: I work for them) also allow you to independently adjust the in-plane and bending stiffness relative to the geometric properties so that you can address such problems.
Thanks Brendan. I’m an engineer in Scotland. Maybe will complete some projects in Australia with my organisation. One bit of feedback. ‘Lets get into it’ followed by ‘before we get into it’ comes across as slightly counterintuitive in scripting / structure. Other than that. Great video. Thanks for helping the engineering community.
Hi Todd, thanks for the feedback. Agree I didn't even pick up on the continuity error. It is a great pick up. Will look out of it in the future. Thanks for the suggestion for improvement and support .
You’re welcome Brendan. I enjoy keeping up with your teachings in Structural Engineering, thanks for all that you do. It is extremely valuable.
@@BrendanHasty can you do a engineer course
@@masternobody1896 Thanks for your suggestions! yeah creating a systematic catalogue of contents is my plan, hopefully I can make it happen sooner than later. Thanks for your support!
Hi, I really love your videos. Can you make a video with an example of each part of the GLAD's theory please ? Thank you!
Great suggestion! I have added it to my video list.
Hi there, one question for You I am 26 years old graduated Bachelor's degree and Master's degree in bridge engineering and still didn't work according to brigdes as a Structural engineer or as a bridge engineer,
But have learned so much both theoretical and practical skills about bridges and bridge engineering.
Is it still there any possibility for Me to find related job somewhere in Europe or else where?
Thank You in advance.
Hi Brendan,
I have a qus. for you ... why when we check defliction of steel beam we check it for live load only ??
& thanks for your videos ❤
Hi Mahmoud, it's because you can typically pre-camber out the dead load deflection hence live load is more critical. But you shouldn't pre-camber out any more than 80%, but if you pre-camber floor beams, it can lead to a bouncy floor.
I am one of your subscribers, and I really enjoyed your video, I want to say can you make a short video on parametric analysis,
Hi Bunny, thanks for watching and your support. I will do future videos on parametric design thanks for the suggestion
Elaboration with numerical examples would be great.
Great !!!
thanks for the support Hazim
Lol FEA might be the forever sorrow and bitterness deep down in my heart. This was the only unit I was so keen to learn but failed at Monash due to unbalanced workload from a team project in another unit. And when I got another chance to re-study the FEA at UniMelb, man, the final exam was changed. There were FEA questions and structural design questions and the latter is indeed design oreineted, which means, for example, I had to trial concrete cross section and correct it if the selected cross section fails in capacity calculation and so we needed more time. We had no choice but to give up FEA since we could not guess how many marks we can get from calculation steps for FEA. But we definitely know we can get the most marks as long as a complete capacity calculation is performed in structural design 😂. So to myself, I could never prove that I comprehended FEA and this is such a pity. But anyway, thanks for your great video.
dudee sameee. I was so eager to learn FEA to this day but when I took the class a lot of things happened in my life outside of my control I ended up just copying and memorizing past problems and solutions, which in the end gave me 0 understanding on the concept. Plus I also forgot how to do the hand calculation so I guess I need to re-learn it from youtube or FEA courses somewhere :"")
Thanks for your support and sharing your experience lol never too late to pick it up though.
@@BY-sh6gt Yea what a shame man. Niw although my work does not require hand calculation of FEA, I too wanna re-gain the underatanding of this field. Good luck m8.
Hi Brendan, please can u do a video about the design of Inclined Columns
Thanks for your suggestion Omar! I have written it down for video planning.
could you use more specific about linear and non-linear analysis please?
Hi Structure, Non-linear requires alot of material properties, but is is intresting. This will likely need a video to discuss in detail I will add it to the list.
@@BrendanHasty thank you.
Informative
Glad that you found it informative
@@BrendanHasty Thanks, I am also a researcher in China, can we connect?
Feel free to reach out via email or linkedin.
Hello Brendan, great video. I liked really much the divulgative approach you adopted to explain FEA. Have a nice day
Hi Tonio, thanks for the continued support. 😊 glad that you enjoyed it.
Good video by the way. Why don't you talk something about frame analysis, subframe analysis for your next video? Take a G+1 or G+2 and show some modelling aspects?
Thank you for your advice! I will put that on my list.
Great video on one of the most misunderstood topics in civil engineering, not to mention that FEA was first invented by a civil engineer. Mostly in universities, FEA is not taught well. Could you please suggest any way we can learn it by ourselves? Thanks.
i dont think it was invented by an civil engineer. it was invented step by step by matematicians and engineers from different specializations. its first applied in aerodynamic engineering (to calculate planes) as far as i know.
i am as well an civil engineer, but we should not divide eatch other by specializations. we are all a big tech-math-family 😅👍
thanks for your support
thanks for your comments Kolavit.
👍🏻
The most beautiful model is the most simplest one
Very true Aytekin!
@@BrendanHasty @Aytekin Cikdi as long as it is not over-simplified :)
It is interesting to see FEA from a civil engineers perspective. The GLAD acronym does not at all address the most difficult part of
FEA which is establishing the correct boundary conditions. For example, the conrod animation indicates clearly that the boundary conditions are wrong. One end (the right) was fixed while the other end (left) appears as though a pressure load was applied. I have seen this mistake so many times. This is why civil FEA engineers should leave mechanical systems to mechanical FEA engineers.
this is what I would cover under geometry, but total agree boundary conditions is a common cause of issues
What is the purpose of this video? Explain FEA for your granny? What is useful here for a structural engineer?