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?
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.
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 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
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!
Wikipedia is my book… I find myself having a deep spiritual thought next thing you know I’m clicking on all the blue words looking at the facts of words like sound, it really is amazing
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!
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!
@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 ;)
@@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.
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 :)
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.
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.
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 ....
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
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.
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.
Correction if I may. 5:37 depicts the Fe atoms being replaced by Carbon, that's what happens in substitutional alloys. Steel is a interstitial alloy, the carbon atoms to not replace Fe atoms, instead they reside in the space between the Fe atoms. This is VERY important since the formation of martensite depends on the position of those C atoms to change the crystal structure of steel into BCT(body centered tetragonal)
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
😭😭😭😭😭😭😭😭 TY..TYSM! U r an ultra pro legend! God bless u! Why don't u tutor our teachers as well..I don't get a single word in his lecture! I feel blessed to have u as my tutor...TYSM!
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.
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
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 UA-cam. I'm going to pass this on to my material science professors as they would be great for freshman engineering students.
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. :)
4:14 Hey nice, dislocations! We need to know quite a bit about them for our geodynamics/microtectonics M.Sc. class, so I know how much more detailed all that can get. Sometimes a less stiff material can be still desired, considering (brittle) failure, right? I mean if that bridge goes from "oh, here it works to "oh, here it collapsed" in an instant, when that would be pretty bad. Also one must keep SLS and ULS in mind. There's one thing I didn't quite understand yet though. Most of the time you're talking about elastic and plastic deformation. What's with brittle deformation? Or is brittle "deformation" simply plastic deformation after the strain was too high? Will have to keep watching some youtube videos about brittle failure, as well as rheology models considering not only strain but also strain rate. I'm very grateful for your videos and visualizations!
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......=)
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 :-)
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.
@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 :)
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?
At 5:10 why elastic deformation is GPa and ultimate tensile is MPa... When you extend an material in order of GPa for sure you go over MPa ... I miss something?
Ultimate strength is in MPA and Young's modulus in GPA because Young's modulus is theoretical and material would break before it reaches that point . Ultimate strength is the value where a material will fail
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?
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.
I have a question: If two materals have the same Young's modulus value, but different yield strengths, will the material with a higher yield strength be called more elastic than the one with a lower yield strength? Or is only the Young's modulus a measure of elasticity?
The rule of thumb that we used, for a safety factor, was 1/2 the yield stress. Though the value can be moved, we used this rule of thumb for almost every application.
Great video! Thanks for creating all of these, they're great. At 2:27, I'm not sure if it was your accent or not but it sounded like you said isotropic rather than anisotropic?
I think he said "for anisotropic materials", but it sounded like for an isotropic materials. If he had said it the latter way, materials wouldn't have been plural.
You did say that the higher the young's modulus of the material, the higher its stiffness but smaller elastic deformation. Mild-carbon steel has a higher E and smaller yield strength which is the opposite of the high-carbon steel. Does this mean, use mild steel in structural design? Thanks in advance for your reply.
On the note of bridges during the end, isn’t yield strength of the material also of importance when wanting to avoid deflection and/or an overall elastic behavior? Of course, a rubber bridge isn’t as beneficial and sturdy as a steel bridge, but wouldn’t using high yield strength steel would also cause problems with deflection?
Thanks a Lot for the Useful info, I Have a Question Please, in Car Plates Industry when we use the 1050 Aluminum Alloy, what Temper you suggest to be Used and what Mechanical Properties are the best to avoid Plastic deformation when applying the Plate Numbers Please. Thanks
Great aninations and best teaching method....but the number of lectures are not enough to fulfill our courses..Hope that it get benifits to students in near future🥰
Yes. If you know the applied force (compressive or tensile testing), the cross-sectional area and the strain, you can calculate the Young's modulus. Hooke's law is the key word. In the beginning of this video he mentioned shear modulus and bulk modulus. For isotropic materials all of these moduli (Young's, shear, bulk) are related via Poisson's ratio. I think it would be a nice video topic (also maybe how it works in orthotropic materials). He did mention shear modulus in the video "Understanding Torsion", though.
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
Sir my doubt really got cleared. Thank you, sir. Sir, it would be better if you decrease the background music just a bit. yours faithfully Hriday Sahoo, India
Sir, is young's modulus of a material changes with the orientation of that material ? or it remains same in all orientations of the body ? please let know the answer.
Very instructive video. Thanks a lot for sharing. I have one small remark regarding the position of the carbon atoms in the steel lattice. In the animation, it looks like they substitute for Fe atoms, while in reality they are present in the interstitials. Maybe this might confuse people. Besides that, I am wondering what the exact reason for the slightly lower modulus of the high carbon steel (vs the low carbon steel) is. I can imagine that the presence of interstitial carbon slightly modifies the equilibrium bond length/strength between two Fe atoms. I suppose that the average Fe-Fe bond length increases with increasing Carbon content. How is the Fe-Fe bond strength affected and how does this overall lead to a slightly lower modulus with increasing bond strength? Can we assume that the bond strength remains the same and the bond length increases so that the strength/strain ratio decreases with increasing carbon content? Thank you!
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.
wow fantastic explanation brother ....if you are reading this would you please take a time to clear my confusion on this? In the case of loading an object with stress we actually recover energy in the elastic region but let's say we have atoms bonded to eachother on an object/To break the bond we supply energy and the atoms are separated,where does that energy we supply go>I mean there is a bond energy and we break it does it mean that our energy is cancelled byy the bond energy producing net 0 or what?Same for magnets,when two large attracting magnets are to be brought far apart we apply a huge force and do work,does that work get cancelled by attraction of magnets or it goes somewhere?please help..thanks in advance
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?
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.
@@TheEfficientEngineer and practically this means? that this kind of material can take up to 210000 N / mm^2 and then breaks?
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%.
@@TheEfficientEngineer Doesn't that also mean that we need 2.1 MN of force to change the materials area by 1 mm^2 ?
@@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
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!
Wikipedia is my book… I find myself having a deep spiritual thought next thing you know I’m clicking on all the blue words looking at the facts of words like sound, it really is amazing
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!
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!
@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 ;)
@@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.
@@nahfid2003 I agree! Atomic-Level-Explanations in Mechanics are the best!
interstitial space means?
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 :)
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.
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.
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 ....
Ya your right , sir your videos are really good , l like them a lot , we can understand easily and gain good practical knowledge .
Hello by now you must have graduated
MAN! People like you deserve more subscribers!!
Keep up the good work👍
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
This channel is the yardstick for engineering education
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.
Awesome. I am a doctoral student, and found your videos amazing. Super easy to understand, but extremely effective. Many thanks.
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.
Awesome, good luck! :)
the kind of youtube channel i was searching. thanks it has helped me in my physics course👍👍👍 u r the best
Amazing explanation, that significance you mentioned is all the reason why this video deserves a like.
Channel is under rated ...i expected millions of subscribers ❤
These series of videos NEVER GET OLD!! thanks!
Correction if I may. 5:37 depicts the Fe atoms being replaced by Carbon, that's what happens in substitutional alloys. Steel is a interstitial alloy, the carbon atoms to not replace Fe atoms, instead they reside in the space between the Fe atoms. This is VERY important since the formation of martensite depends on the position of those C atoms to change the crystal structure of steel into BCT(body centered tetragonal)
Great, but i guess he wanted to keep the atomic level details minimum...so the beginners don't get confused, but the overall idea is correct
I googled what my vise grip tool was made of and ended up with a bachelor's in engineering lmao
inspiration comes in many foms!
Keep up the good work of explaining these material properties in such an interesting and understandable way.
presented all aspects of youngs modulas with great clearity and graphics 👌👌👌
Fantastic gem of a channel here.
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
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
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!
Thank you for the wholesome technical explanation ,it makes comprehension easier in Mechanical Engineering studies
😭😭😭😭😭😭😭😭 TY..TYSM! U r an ultra pro legend! God bless u! Why don't u tutor our teachers as well..I don't get a single word in his lecture! I feel blessed to have u as my tutor...TYSM!
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.
I meant lowered ductility, sorry it’s 1am
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
Probably best if you send me an email to hello@efficientengineer.com with specifics.
It is soo detailed!!
Thank you upload more civil engineering related videos..
5:57 If i understand correctly...
In bending load. It is strain that increases stress which results failure of material.
Very good explanation of material properties, hope we can see more video like this. thanks a lot~~
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 UA-cam. I'm going to pass this on to my material science professors as they would be great for freshman engineering students.
Thank you, much appreciated!
A short & comprehensive video which well explains the basics. Thanks!
Love the videos so far, excited to see where this goes.
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 explanation in each and every video .feeling very happy to listern every video...expecting even more videos like this ..
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.
4:14 Hey nice, dislocations! We need to know quite a bit about them for our geodynamics/microtectonics M.Sc. class, so I know how much more detailed all that can get. Sometimes a less stiff material can be still desired, considering (brittle) failure, right? I mean if that bridge goes from "oh, here it works to "oh, here it collapsed" in an instant, when that would be pretty bad. Also one must keep SLS and ULS in mind.
There's one thing I didn't quite understand yet though. Most of the time you're talking about elastic and plastic deformation. What's with brittle deformation? Or is brittle "deformation" simply plastic deformation after the strain was too high?
Will have to keep watching some youtube videos about brittle failure, as well as rheology models considering not only strain but also strain rate.
I'm very grateful for your videos and visualizations!
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......=)
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 :-)
Thanks for the fact checking =)
Fantastic explanation!
Waiting to watch more videos on Civil Engineering!!
hey, continue the videos. it helps me a lot. thank you!!!
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.
Thanks Feynstein! Graphene would have been a good one to discuss. I'll try and mention it in a future video.
@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 informative with simplicity
Fantastic explanation. Short and on point!
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?
Beautiful video, straight to the point and easy to understand. Subbed :)
At 5:10 why elastic deformation is GPa and ultimate tensile is MPa... When you extend an material in order of GPa for sure you go over MPa ... I miss something?
Ultimate strength is in MPA and Young's modulus in GPA because Young's modulus is theoretical and material would break before it reaches that point . Ultimate strength is the value where a material will fail
Your slides are so good. The background, presentation,.....😃
Amazing content keep it up. love the effort to quality in the videos
I am from India your video is very efficient for me thanx a lot
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?
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.
Now I will not forget anything about youngs modulus 👏👏
Thank you!!! Glad I found your channel, I have a design principle module at uni
Great going hope to have more vedio s in future
I have a question:
If two materals have the same Young's modulus value, but different yield strengths, will the material with a higher yield strength be called more elastic than the one with a lower yield strength? Or is only the Young's modulus a measure of elasticity?
Wow, you sound more cheerful on this video! :-D As usual, great lessons...Thank you.
Thx man, i have exam tomorrow, you helped me a lot ❤
excellent!! very illustrative and to the point. Thanks
Excellent. Greatings from Colombia!
This channel is amazing. Keep making videos!!!!
I have Materials test tmrw thanks for the help
Thanks for the beautiful videos. Subscribed. But please consider not having the background music . It is quite distracting for a serious subject.
Amazing videos, helped me a lot.
Keep doing these stuff :)
Hi dear Eng...I have a question..
I want to know with what software do you make these amazing videos ?
Thanks in advance.
The rule of thumb that we used, for a safety factor, was 1/2 the yield stress. Though the value can be moved, we used this rule of thumb for almost every application.
2:33 how?
We say modulus of elasticity is a material property than how is it changing on type of applied load(parallel or perpendicular to grain) ???
The reason is that wood is an anisotropic material, and so its material properties are different in different directions.
@@TheEfficientEngineer 👍
Thanks a lot, for your very very good explanation of Youngs Modulus!
great animation and delivery method.. which software you used for making animation?
Thanks Hammad. I use Blender.
Great video! Thanks for creating all of these, they're great. At 2:27, I'm not sure if it was your accent or not but it sounded like you said isotropic rather than anisotropic?
I think he said "for anisotropic materials", but it sounded like for an isotropic materials. If he had said it the latter way, materials wouldn't have been plural.
In 2:41 you said E perpendicular to grain is higher than E parallel to grain. can you explain how and why?
You did say that the higher the young's modulus of the material, the higher its stiffness but smaller elastic deformation. Mild-carbon steel has a higher E and smaller yield strength which is the opposite of the high-carbon steel. Does this mean, use mild steel in structural design? Thanks in advance for your reply.
On the note of bridges during the end, isn’t yield strength of the material also of importance when wanting to avoid deflection and/or an overall elastic behavior? Of course, a rubber bridge isn’t as beneficial and sturdy as a steel bridge, but wouldn’t using high yield strength steel would also cause problems with deflection?
May I know what app did you use for your animations?
Great Sir!!! Kudos!!! Please post more videos
These videos are great, thank you!!
Very well explained sir. Thank you.
Thanks a Lot for the Useful info, I Have a Question Please, in Car Plates Industry when we use the 1050 Aluminum Alloy, what Temper you suggest to be Used and what Mechanical Properties are the best to avoid Plastic deformation when applying the Plate Numbers Please. Thanks
2:33 Shouldn't "parallel to grain" have a steeper slope than "perpendicular to grain"?
watching these to study for the MCAT. You should make "Efficient Doctor" videos haha
You will become engineer of human body don't worry. 😁👍
Thanks for the informative videos. If you don't mind me asking, which software do you use for animations?
Great aninations and best teaching method....but the number of lectures are not enough to fulfill our courses..Hope that it get benifits to students in near future🥰
very nice, but a question: can i discover the young's modulus with other test, insted tensile test? like compresion, or shear? thacnk you!!!
Yes. If you know the applied force (compressive or tensile testing), the cross-sectional area and the strain, you can calculate the Young's modulus. Hooke's law is the key word. In the beginning of this video he mentioned shear modulus and bulk modulus. For isotropic materials all of these moduli (Young's, shear, bulk) are related via Poisson's ratio. I think it would be a nice video topic (also maybe how it works in orthotropic materials). He did mention shear modulus in the video "Understanding Torsion", though.
So in the elastic state, does the material always return to the same length after being released before entering the plastic state?
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
i just discovered you awesome channel ! i cant find the shear/bulk modulus thank you !
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
Sir my doubt really got cleared. Thank you, sir. Sir, it would be better if you decrease the background music just a bit.
yours faithfully
Hriday Sahoo, India
Superb content. Keep going!
Very precise and informative
very useful videos, help a lot! Thanks!
Sir, is young's modulus of a material changes with the orientation of that material ? or it remains same in all orientations of the body ?
please let know the answer.
Very instructive video. Thanks a lot for sharing. I have one small remark regarding the position of the carbon atoms in the steel lattice. In the animation, it looks like they substitute for Fe atoms, while in reality they are present in the interstitials. Maybe this might confuse people. Besides that, I am wondering what the exact reason for the slightly lower modulus of the high carbon steel (vs the low carbon steel) is. I can imagine that the presence of interstitial carbon slightly modifies the equilibrium bond length/strength between two Fe atoms. I suppose that the average Fe-Fe bond length increases with increasing Carbon content. How is the Fe-Fe bond strength affected and how does this overall lead to a slightly lower modulus with increasing bond strength? Can we assume that the bond strength remains the same and the bond length increases so that the strength/strain ratio decreases with increasing carbon content? Thank you!
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.
Thanks a lot Nima. I use Blender to make the animations.
wonderful presentation
wow fantastic explanation brother ....if you are reading this would you please take a time to clear my confusion on this?
In the case of loading an object with stress we actually recover energy in the elastic region but let's say we have atoms bonded to eachother on an object/To break the bond we supply energy and the atoms are separated,where does that energy we supply go>I mean there is a bond energy and we break it does it mean that our energy is cancelled byy the bond energy producing net 0 or what?Same for magnets,when two large attracting magnets are to be brought far apart we apply a huge force and do work,does that work get cancelled by attraction of magnets or it goes somewhere?please help..thanks in advance
Will you please make video on moment of Inertia, Radius of Gyration. That will be very helpful.