Understanding True Stress and True Strain
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- เผยแพร่เมื่อ 25 มิ.ย. 2024
- Did you know that the typical stress-strain curve obtained from a uniaxial tensile test is just an approximation? It doesn't consider the fact that the dimensions of the test specimen change throughout the duration of the tensile test.
In this video I cover the interesting topic of true stress and true strain.
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The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!
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True sir as a student I must say TH-cam is givin us much luck
Sí, ahora toca aprender también inglés🤠
Question: We can not use engineering and true stress relation after necking but what about strain? Can we use this strain relation abeyond necking?
The quality and clarity of your videos are second to none. Thanks, from a non engineer.
As a mechanical engineering student in my third year I must applaud you for explaining these crucial concepts with such simplicity. The mark of an excellent teacher.
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Never understood one thing about this in college, understood all of it in a 6 min video
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Great video. One another possible reason why engineering stress is used in practice, in addition to difficulty in measuring true stress, is that it better reflects real-life loading scenarios in the sense that the applied load doesn't change when necking initiates.
Thank you!! I had only studied Engineering stress-strain curves and it had been bugging me as to how they ended up at such a curve from the results of a UTS test, whether the reduction in cross-sectional area was taken into account or not. You answered it on point! Thank you so much.
Hi! I’m a Materials Engineer and I know that these concepts are sometimes difficult to understand. So, I appreciate your video because you achieve to explain it clearly. Nice job mate!
Great video as usual! I would just like to add that in structural engineering we don't design structures to remain elastic (at least in reinforced concrete), but we still use engineering stress for design because most of the time we work with uniaxial stresses and strains (for example, we simplify reinforcement bars and we assume they are linear elements instead of 3D elements).
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Thanks Hamid! :)
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With Respect
Parijat (IIT Kharagpur, India)
I love your videos. I hope we can get more of them
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I need more of your videos on strength of materials.
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I thank you for clarifying me.😊
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Thanks a lot. this video is really helpful.
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I'm an engineer myself and i can tell you have great content. With all due respect the background music sounds cheap and sometimes it takes my attention away from your explanations.
This might be a personal bias.
brother grate explanation , i never learnt this in clg like this.
Cool content, thank you!
So to sum up :
True stress and strain is mostly higher than engineering stress and strain ( which we calculate theoretically). But with the help of this equations 6:30 true stress and strain can be easily calculated
Sir please don't judge you efforts and skill by your no. of Subscribers...
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That video quality though ❤️🔥
Please upload some more regularly............ Related to civil engineering and mechanical !!!!!!...
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videos are very good for understanding. A picture says 1000 words
Thank you for clarifying that point.
That bugged me ever since because it was never clear which area the load was divided by. It just didn't make sense to me that the strenght of the material was getting worse when it's cross sectional area was smaller for a bigger load.
Thank you!
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Perfect video.
Looking for more...best visuals to understand
Thank u , Its really very very helpful.....
Amazing..... thank you
this is a brilliant simplified derivation of rules thank you
Thank you!!!
My kind request to post a video for every 2 or 3 week. Thank you for posting those videos.
Thanks Sharan. I'm aiming to post a new video every 3 weeks!
Awesome explanation, you're all videos are interesting specially compound stress vala. Can you tell me which software do you use for thumbnail and which text font it is?
What is the program that made this video???
That is a great work 😍😍
He mentioned on the other video that it was made with Blender
This is a missing part when I was learning the stress - strain test. True strain and stress are precisely depicting the tensile experiment.
Perfect videos, perfect animation and I appreciate your work. almost seen your every video. just one correction in this video. Stress is Internal resisting force to the applied force per unit area. And not applied force per unit area. Thanks
thank you so much