What is Elastic Modulus?

[@amykearns5232]

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!

[@GamingShiiep]

Me too. I'm studying a geoscience M.Sc., but sometimes these KZbin visualizations and educational videos are just so much better to get back into the topic than reading these dry lecture notes.

[@kaupark]

All the best!

[@amykearns5232]

@@kaupark thanks, I passed in November!

[@kaupark]

@@amykearns5232 Congratulations! I too passed mine in October...

[@mechastudies1656]

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

[@advjunkie94]

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

[@sarahluna4815]

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

[@ethanjiinkies5450]

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

[@purdueMET]

Thanks, I'm glad the videos are helpful :-)

[@2006mumu]

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

[@truelovekitty4947]

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

[@purdueMET]

Wonderful, thank you :-)

[@Lgm-v8b]

@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.

[@yt_tanmoy]

❤2023 Viewers....

[@jaydeeppatil1488]

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

[@onyiboemmanuel6060]

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

[@purdueMET]

That's hilarious. I'm quite pleased to be of help :-)

[@ravshanbekmavlonov2996]

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

[@nadhikary6741]

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

[@mecanicoing9]

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?

[@poojakushwaha756]

Wow thanks for this video all my doubts cleared out

[@purdueMET]

You're most welcome. I'm glad it helped :-)

[@vikramjoshi3452]

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!

[@olaoluwaomopariola4867]

Thanks a lot for this video... And all the others. They're really helpful.

[@purdueMET]

Glad you like them :-)

[@tomasenrique]

Every one is better than the other! Thanks!

[@jasgajaria]

Doesn't the elastic modulus imply tensile stresses and strains? What modulus should one use for material selection when we don't want bending?

[@mahindarjubbal3257]

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.

[@adrianvogel9541]

that was incredibly helpful

[@freddieordinario1265]

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

[@prabodhgyawali743]

Nice drawing of the light beam

[@staticentropy6822]

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 me.....because 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?

[@moussajafaar7896]

Thank you for this wonderful explaining, but I got a question If we are doing a tensile test and a compressive test to the same material with another Rod, Will the Elastic Modulus be the same at the two different tests?

[@purdueMET]

Yes, elastic modulus is the same for tension and compression. This assumes there's no permanent deformation.

[@fatimakhan8470]

Thank you so much. it was a great lecture

[@celinrooth2219]

Thank you Sir, This was really helpful

[@ofonwilliam]

SO elaborate, true tutor!!!!

[@sky-mi1ek]

Difference between modules of elasticity and modules of rigidity and Bulk modulus and poison ratio..?

[@arusan7854]

Hi Please can u help me in understanding why youngs modulus more than Yeild strength

[@sajharguru]

Thank you very helpful video ❤

[@thutmoseiii4583]

This was informative, thanks.

[@jeunfor]

Thx for quality lecture :)

[@purdueMET]

You're most welcome. I like collecting views, so please share the link :-)

[@daryavoyush4949]

thank you for your video!

[@maazshariff9309]

Planning to meet you at NASA after I hopefully get a job there 🙄🙄. Thanks a lot for your initiative 😁

[@praneetmishra9077]

Thanks for the video

[@mvcivil2411]

Thank you sir.

[@sureskumarsharanihan5142]

Thank you so much 👍.

[@mohanbabupm5778]

Wow wow amazing expln extremely thank full to ur video

[@peterpersson1967]

Great video, but it is missing a final 😀Why does everyone, yes EVERYONE "fail" to explain from WHERE this huge value comes from? How is it defined/tested/calculated for let's say a brand-new unknown material? How does this number define the stress/strain elastic angle?

[@alexkid1]

Really helpful. Thank you.

[@purdueMET]

You're welcome! Please share the link with others who might enjoy seeing the video :-)

[@jayz9253]

if Aluminum is more flexible than steel, why does my aluminum bike frame feel stiffer than a cheaper steel bike frame?

[@spurthichadharam9144]

So is young s modulus is directly proportional to strain and inversely to stress

[@purdueMET]

stress = E*strain or E=stress/strain

[@travelwithjashim]

thanks for nice vedio

[@rafaelmera3865]

Me encanto cuando usted hablo en español, saludos desde Ecuador.

[@aryadev_an]

Thanks alot sir 💗

[@spurthichadharam9144]

Material s strength depends on abilities to take more strain

[@faridjahanipour7634]

Thx professor

[@purdueMET]

Glad you liked it :-)

[@abdulazizalhadlaq7521]

thank you

[@purdueMET]

You're most welcome :-)

[@louf7178]

"E for elastic, I guess", gee, make no assumptions, I guess.

[@purdueMET]

Hmm, this is what engineering does to you :-o

[@miguelferreiramoutajunior2996]

Thanks. Nice didactics.

[@purdueMET]

Glad you like them!

[@계란볶음밥-g6y]

Good job

[@purdueMET]

Thanks :-)

[@harithmohdnasir3911]

Nain Nantucket Nelson River New Bedford New Siberian Islands 140.00 E Newtontoppen 17.45 Even North Cape 25.00 E North Kent Island Novaya Zemlya 30.53 E Novgorod 31.20 E

[@jackshawn4855]

Why elastic modulus in Gpa instead of Mpa Need brief plz

[@maazshariff9309]

1gpa is 1000mpa so the poplar wood has a modulus of 8000mpa

[@sandiwijaya4964]

4:00 "not silly english units" lol.., Still, US got really great with the imperial unit. thanks for the knowledge

[@habibaabdallah7448]

That's good 😊

[@maazshariff9309]

I'm preparing notes. U spoke 2 and a 1/2 pages😭😭

[@COOLJACE98]

No comments on this man's artistic abilities? Lol, He drew near-perfect vertical and horizontal lines while blinking.

[@purdueMET]

Thanks :-) I think all engineers should take art classes. Also, I'm old enough to have learned drafting with a T-square and a drawing board.

[@moazzumgillani4852]

Did not explain what the numbers actually mean! It could be better if you add that for the same strain to generate in each of material, you need that much stress.

[@chir0pter]

How embarrassing for you to be using units that people who actually make stuff found effective for hundreds of years before moving decimal places with calculators was a thing

[@usersslimss]

☝️🤓

[@sambot4547]

English units are Far better sir!!!!!

[@issamusawi]

No.

[@sambot4547]

@@issamusawi yes!

[@louf7178]

It might be beneficial to explain that "modulus" means "a constant or coefficient that expresses, usually numerically, the degree to which a body or substance possesses a particular property (such as elasticity)".