What is Elastic Modulus?

[amykearns]

Man, I'm in the process of going back to basics while studying for the Civil Structural PE exam. Your videos are great - so helpful and easy to understand. It's surprisingly easy for basic concepts to get dusty. Thanks for helping me dust off those cobwebs!

[mechastudies]

“Not silly English units” loved that. Nice video, thanks for the explanation

[advjunkie]

Very clear and simple explanation. Thanks a lot. I wish everyone would get a teacher like you.

[jaydeeppatil]

Great video.Would love to see video on relation between modulus of rigidity, elasticity and poissions ratio.

[Lgm-vb]

@03:58 - We English use Metric units now, we tend to refer to the old "Imperial" units as "American" sizes now 🙂. (Thomas Young was English btw).
Anyway, great explanation and thanks for posting sir.

[sarahluna]

Thank you so much for this video!! Hope that all professors teach like this (not just words, but with illustrations or visuals) Much appreciated.

[mumu]

thank you so much sir, after 15 years of graduation of bachelor's degree, I'm having a master's degree, and your explanation helps me a lot, i hope you are my professor sir, haha

[ethanjiinkies]

Always appreciate your lectures for your viewers. Great quality and great explanations as always.

[truelovekitty]

You have a new subscriber sir. I loved how you explain and demonstrate what you are talking about. Helped me understand it better.

[nadhikary]

Thanks !!
Waiting for rest of the videos...(:

[onyiboemmanuel]

You are redefining my knowledge to 5G standard, thank you sir.

[poojakushwaha]

Wow thanks for this video all my doubts cleared out

[ravshanbekmavlonov]

you made easy to understand what elastic vodulus is. Thanks.

[tomasenrique]

Every one is better than the other! Thanks!

[mecanicoing]

Good introduction to E. Two questions, what is the relationship between E and the temperature of the material? And when doing stress calculations should we use the E at ambient temperature or at the design temperature and why? What is the proper approach?

[mahindarjubbal]

If you would have been my teacher I would have become an engineer. Other teachers and mediums should learn how to make learning this simple and enjoyable.

[freddieordinario]

Is the elastic modulus always higher than the rupture modulus??

[staticentropy]

the thing that I can't quite get is this...knowing the fact that "E" is stress over strain...that should mean that if we have the strain and E we should be able to calculate mathematically the stress that was responsible for that strain....now does that mean that if we had strain caused by Tension we could find the stress that caused it using the Elastic Modules, and if we had the Strain caused by compression we could find the stress using the same modules (EX:210Gpa)....or does E for Tension deffer from E for Compression....and in bending is where it gets really complicated for in bending there are 2 stress's...so which one are we finding....and can we actually accurately calculate stress or strain using the Elastic Modules knowing that is another stiffness that is coexisting with the material stiffness which is the shape stiffness....too many questions...I don''t know...there must be something that i'm missing or not understanding correctly

[HARI.ARRA.]

Sir, how is it possible that concrete has a lower young's modulus than steel?

[vikramjoshi]

Hello, Professor! In this case, you are bending the material as opposed to the conventional compression or elongation used to obtain the stress-strain curve. Generally speaking, will the trends that we see here for bending be the same when compressing a material? I have recently started working with molecular crystals that researchers have labeled as elastic when they regain their original shape after bending, but I am not sure if the terminology is the same. Please let me know what you think.

P.S.: this is a great video. Thank you for making it so simple to comprehend!