i have a question. I understand everything about Young's Modulus but, when they say a material has for example 210000 N/mm^2 , what do they mean? that it can handle 210000N/mm^2 in the elastic region? and then it goes to the plastic?

@TheEfficientEngineer

4 жыл бұрын

Young's modulus, yield strength (the stress at which a material goes plastic) and ultimate strength (the stress at which a material fractures) all have the same units. So it doesn't make sense to say "a material has 210000 N/mm^2", without specifying which parameter we are talking about. 210 GPa is a typical Young's modulus value for steel, so it is likely that in this case the 210000 N/mm^2 is Young's modulus.

@MFDOOMgr

4 жыл бұрын

@@TheEfficientEngineer and practically this means? that this kind of material can take up to 210000 N / mm^2 and then breaks?

@TheEfficientEngineer

4 жыл бұрын

No - it means that the slope of this material's stress-strain curve in the elastic region is equal to 210000 N/mm^2. So for example for an applied stress of 210 MPa, we would get a strain of 0.1%.

@whitelight32

4 жыл бұрын

@@TheEfficientEngineer Doesn't that also mean that we need 2.1 MN of force to change the materials area by 1 mm^2 ?

@gieaudio8762

4 жыл бұрын

@@whitelight32 no, it means that you need 210 GPa stress in material to deform it by 100%, of course it will fail because Young modulus is only appropriate (linear) in elastic range of the material. Simply saying, Young modulus is the number that helps you transform stresses to strains and vice versa but only in the elastic range of the material, for concrete it is 0,20% for compression, for reinforcing steel it is up to ~0.24% in tension

just started A-level physics and im so happy I came across this because no one else explains it so well. thankyou

@lazytommy0

4 жыл бұрын

I feel ya dude. Its tough finding the right information presented in the proper way sometimes. Thats why alot of people struggle with math. Its overly complicated by improper presentation.

@souravkundu6874

2 жыл бұрын

It's been 2 years. How did your A level physics end up??

@tempestandacomputer6951

2 жыл бұрын

Is this meaning introductory physics in your country, or advanced?

@seungseungminji

7 ай бұрын

@@tempestandacomputer6951 It's for the A-levels, so junior and seniors (16-18 year olds).

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Keep up the good work of explaining these material properties in such an interesting and understandable way.

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This is a really great straight forward video. As a Metallurgist, this was a really good introduction. You explained it way better than my professors did. I don't wanna be that guy that tells you why your video is wrong. But around 5:30, you show that carbon replaces the iron atoms in your model. In reality, carbon goes in between the iron atoms in the interstitial space. This is hopefully a video that you could do in the future talking about until cells and Crystal structures. Keep up the good work!

@TheEfficientEngineer

5 жыл бұрын

Thank you for your kind comments Jon. You are of course correct about the interstitial nature of steel - my mistake. Hopefully the animation still illustrates the point without being too misleading. A video on unit cells would be really interesting - thanks for the idea!

@a1mforthetop

4 жыл бұрын

​@pyropulse As an engineer with quite some work experience i must say the following: The stuff with the atoms is nice and everything but it should have been left out of a beginners introduction video entirely. The only thing that has to stick in the head of an efficient engineer is that E is a material constant that represents the slope of sigma and epsilon and is different for different materials. It is also commonly used in combinations like EI and EA. For the advanced theoretical engineer the atom part is important of course ;)

@nahfid2003

3 жыл бұрын

@@a1mforthetop I don't think so, I am a high school student and I get way more intuition if I understand how things work at the atomic level and then use the non-descriptive formulae.

@updatedotexe

3 жыл бұрын

@@nahfid2003 I agree! Atomic-Level-Explanations in Mechanics are the best!

@hridaysahoo3101

3 жыл бұрын

interstitial space means?

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Your videos are great. They help me so much. You should feel really proud of all the value u provide for people, at no cost to them!

It feels sad that you have very less subscribers. But I must say the way you explain concepts is awesomeeeee..... Looking for many more concepts from you ....

@sirigiri7091

4 жыл бұрын

Ya your right , sir your videos are really good , l like them a lot , we can understand easily and gain good practical knowledge .

@abdirahmanabdulbari6665

Жыл бұрын

Hello by now you must have graduated

Amazing explanation, that significance you mentioned is all the reason why this video deserves a like.

Amazingly beautiful way of elaboration.my whole study of Youngs Modulus at one side and this at other side. Really great work👌. Keep it up

A short & comprehensive video which well explains the basics. Thanks!

These series of videos NEVER GET OLD!! thanks!

Thank you for the wholesome technical explanation ,it makes comprehension easier in Mechanical Engineering studies

presented all aspects of youngs modulas with great clearity and graphics 👌👌👌

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Love the videos so far, excited to see where this goes.

Fantastic explanation! Waiting to watch more videos on Civil Engineering!!

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It is soo detailed!! Thank you upload more civil engineering related videos..

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@TheEfficientEngineer

3 жыл бұрын

Awesome, good luck! :)

Great explanation in each and every video .feeling very happy to listern every video...expecting even more videos like this ..

Fantastic explanation. Short and on point!

Beautiful video, straight to the point and easy to understand. Subbed :)

Very good explanation of material properties, hope we can see more video like this. thanks a lot~~

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Your slides are so good. The background, presentation,.....😃

hey, continue the videos. it helps me a lot. thank you!!!

keep up the great work. Looks like you're channel is very new but your presentation and video making skills are already on par or better than quite a lot of educational content here on KZread. I'm going to pass this on to my material science professors as they would be great for freshman engineering students.

@TheEfficientEngineer

4 жыл бұрын

Thank you, much appreciated!

excellent!! very illustrative and to the point. Thanks

Amazing content keep it up. love the effort to quality in the videos

very informative with simplicity

Thanks a lot, for your very very good explanation of Youngs Modulus!

Thank you!!! Glad I found your channel, I have a design principle module at uni

The best presentation ever made Thanks

Plzz upload such videos more in the future so we will build our cocepts in better and efficient way. Thanx.

Excellent. Greatings from Colombia!

These videos are great, thank you!!

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Very well explained sir. Thank you.

wonderful presentation

Thank you, so helpful and clear!

Wonderful Lectures ! Thanks.

So good an explanation it was..... believe me your subscribers are gonna increase with the speed same as the speed of light......good luck.... and I'm a subscriber too......=)

Great going hope to have more vedio s in future

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Just found your page tonight I find it interesting so far. I’m a dual ticket Red Seal Ironworker and Welder and I’ve performed tensile tests both in school and at work. What you covered is very informative but you could have added more about quenching and tempering and how much tensile strength it can add. How it increases brittleness and ductility. I had a weld test on mild steel with 7018 SMAW welding electrode(rated for 70000 psi per square inch) heated red hot and quenched immediately. It sheared at 138,000 psi on the tensile test which I found very interesting.

@paulcarroll5602

Жыл бұрын

I meant lowered ductility, sorry it’s 1am

Great Sir!!! Kudos!!! Please post more videos

Thank you for your job , and I'm wondering If I could take some images from this video to put it in my thesis , if you don't mind cane you send me the resources to put it in the reference Thank you again

@TheEfficientEngineer

4 жыл бұрын

Probably best if you send me an email to hello@efficientengineer.com with specifics.

Very precise and informative

Superb content. Keep going!

Please post more videos. Thank you for easily explanation

Thank you for your information and knowledge to us

I have Materials test tmrw thanks for the help

Now I will not forget anything about youngs modulus 👏👏

Thanks for the informative videos. If you don't mind me asking, which software do you use for animations?

Awesome explanation. Thanks

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I learned alot here. Thanks man!

Great video. Wish it were a bit longer. I especially wanted to see a comparison of various materials, including graphene, which has the highest Young's modulus as far as we know.

@TheEfficientEngineer

5 жыл бұрын

Thanks Feynstein! Graphene would have been a good one to discuss. I'll try and mention it in a future video.

@feynstein1004

5 жыл бұрын

@The Efficient Engineer You're quite welcome. It seems like I'm an earlycomer to your channel, meaning I'll probably get to talk to you one and one and my feedback will actually matter. Just the way I like it :)

Very clear,thanks a lot!

amazing content. keep it up

Every topic is very well explained and helps us visualise, which is really important. Hats off to @The Efficient Engineer. But it would be very much appreciated if music is not used.

excellent work

I googled what my vise grip tool was made of and ended up with a bachelor's in engineering lmao

@elliotskunk

3 жыл бұрын

inspiration comes in many foms!

nicely explained, thank you

just wow man amazing content keep going upload more videos pls

At around 2:30, i hear wood and composites as an isotropic material. I somehow remember them to be orthotropic. Correct me if i am wrong. Nice videos: this one and others on this channel. I sometime stream them on TV as well. Thanks for putting such info in concise form. :)

Great video, I think it would be good to add that bridge should be stiff but not brittle, because it certainly will bend to some extent

Wow, you sound more cheerful on this video! :-D As usual, great lessons...Thank you.

Hello The Efficient Engineer! Thank you for your videos! They are great! I have one question. Why did you show on graphic on 2:38 that wood (pependicular to grain) is stiffer than wood (parallel to grain). I think it must be contrary because if load direction is parallel to grain than grains are tensed by all their length. But if load is pependicular to grains, so only part of grain and the space between grains are strained. Isn't the second case lesss stiff than the first one?

i just discovered you awesome channel ! i cant find the shear/bulk modulus thank you !

Great video :) I have a question. In your opinion, is the young's modulus more important than the bending resistance in parquets? or is there a difference between them ? thanks

Awesome video! Btw, just a question. So assuming that stiffness in polymeric material is caused by the intermolecular forces. So the stress-strain curve for polymeric materials flatter in higher stresses cause the molecules are farther apart and the intermolecular forces are weaker and less stress is required to pull the molecules apart. Is that right?

Well explained Sir.

what a great video !

Good video that I can recommend to my students. But be careful: in your stress-strain curve, you have greatly overestimated the elastic strain (it's just 0.1-0.5% for most steels) as compared to the plastic strains. Also, while many engineering materials indeed follow Hooke's law, this is by no means generic behaviour. Many plastics, foams, and biological matter are very different :-)

@loadstone5149

Жыл бұрын

Thanks for the fact checking =)

Thankyou Sir , love this ♥️🤝

extremely helpful

thank you! Very helpful

as a materials engineer, I enjoyed ur video. Btw, what software do you use to make the graphs and animations in this video?

Thanks for this.

Awesome video! The explanation was brief and right into the point. Thanks a lot!! I was wondering what sort of software you use to make your videos. The transitions are smooth, and the figures and graphs are animated.

@TheEfficientEngineer

4 жыл бұрын

Thanks a lot Nima. I use Blender to make the animations.

Great job

I do like your content; what is the software you are using to make those outstanding presentations? Thank you for your lesson.

I want to see how you use and work a young s modulus value within a formula , for example to find the change in length, thanks and well done

Thankyou so much❤ for amazing video

Great video

I am from India your video is very efficient for me thanx a lot

it was so helpful, thanks alote

Very informative!! Please create a video on iron carbon diagram And heat treatment Thanks

thank youuuuuu thank you thank you thank you for making core physics fun and understandable. Liked and subscribed :)

Thx for the great clip. I have to say, this short 10min clip is much better than my professor's 1hr lecture. I have a question, thou. Can we say that Young's modulus is a similar concept to 'spring constant'?