Understanding Young's Modulus

Young's modulus is a crucial mechanical property in engineering, as it defines the stiffness of a material and tells us how much it will deform for an applied stress.

In this video I take a detailed look at Young's modulus, starting with tensile tests and stress-strain curves, all the way through to what is happening at the atomic scale.

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ERRATA:
- At 05:27 steel is incorrectly shown as being a substitutional alloy. It is actually an interstitial alloy, where the carbon atoms are located between the iron atoms.

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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!

[MFDOOMgr]

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?

[ajeynager]

I get amazed at the wealth of information available to us now. It's fascinating how physics, one of the broadest subjects, is so widely accessible and easier to understand if explained by independent creators rather than by mainstream school teachers. Amazing video, btw!

[tanuthakur]

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

[AhmedKhan-mtky]

Bro the background music in disturbing the concentration. Please upload it with a smooth and lighter music like in your stress strain demonstration video. Thanks

[jongeiser]

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!

[havenjoseph]

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

[mozammelmia]

Awesome. I am a doctoral student, and found your videos amazing. Super easy to understand, but extremely effective. Many thanks.

[MANJUANANTH]

Very useful and simple refresher. I had forgotten these stuff from my college days. I was doing some project with my driveway to eliminate lateral stress on a retaining wall thereby extending its life. I was stuck at a point. I could get the vertical stress figured out but horizontal is what mattered. This video refresher cleared everything and I am at completion of my project. Thank you for the educational videos.

[kalki]

This is a clear and comprehensible explanation.
The sounds in this video are sooo pleasing and captions are perfectly timed.
It is evident that you have really put an effort into making everything great. Thank you :)

[hemrajmeena]

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

[tomasenrique]

These series of videos NEVER GET OLD!! thanks!

[ryanpfannenstiel]

I wish I had these videos before solids and egineering experinentation courses. Incredibly well done. Ill be sure to lead other people your way when they are introduced to these concepts.

[maazshariff]

Pls don't put music in the background. It is distracting 😭

[MrShaan]

Everything is great about this video, the explanation is top-notch supported by equally great animations and designs. This is the first video I am seeing on your channel. Looking forward to watching other videos and understanding my concepts better.

[rikhilnell]

MAN! People like you deserve more subscribers!!
Keep up the good work👍

[emanuelnolasco]

Really interesting video!!!

It is really awesome how this topic can be so simple to explain in a video of less than 7 minute instead when you are at university class normally takes 1.5 hours

[zahidarafeeq]

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[ashishrai]

the kind of youtube channel i was searching. thanks it has helped me in my physics course👍👍👍 u r the best

[jakegray]

Thank you so much bro I got an engineering final today this helped quite a bit as well as several of your other videos. You have for sure earned yourself a subscriber.

[zachydrogeo]

This channel is the yardstick for engineering education