Stress strain diagram lecture | [Strength Of Materials lecture] | strain hardening

real meaning of hooks law explained.
real meaning of elasticity explained.
physical significance of yield point .
ultimate strength and fracture strength also explained.

[@ranjanchowdhury7081]

I cannot explain in words that how beautifully you have explained. You have tremendous dedication for teaching.

[@gargichowdhury435]

Very good sir👍👍👍

[@gopalgawande6249]

Very very nice explain sir Thanku

[@johnpulickal9736]

Awesome explanation. Helped me a lot Thanks

[@101fady]

The best explanation on the internet hands down Bravo

[@prashantpatil-sv1hh]

Excellent explanation...in detail to the point...tried to watch 10-15 videos of 5-10 mints... but giving this total time made my concepts very clear...thank you sir..you are doing great by giving us your time

[@satyajitsahoo11111]

Best lecture ever I have seen yet..Thanks a lot Sir

[@suvarnamunjam435]

Very well explained sir.👏 please make more videos on SM subject.

[@gopikrishna8077]

Superb explantion and clear concepts.. great teacking skills..thank you very much sir

[@bipradipchatterjee1902]

You provide me clearly knowledge.....thanks sir

[@Sushmaambhor2]

Very good explanation sir ....and your English is very good to understand every student in world

[@aasmohammad3266]

Great explanation

[@sudharsanchenna5274]

Hats off sir, take a bow. god bless you

[@faridwazir4327]

Nice one sir thanks

[@tekulapallysujatha7330]

Good explanation sir

[@thirurain1629]

Thank you sir,, i understand the concept very clear

[@amitmukherjee4216]

Thanks sir for this wonderful video.

[@gargichowdhury435]

Very nice 👍👍👍

[@ananyaghosh6064]

Thankyou sir cristal clear concepts

[@nontechnicalclassroom]

You said yielding means entering into plastic region then what is the region between E and y1. Good concept.

[@rzgarasadd2395]

elastoplastic

[@prajnadattameher6210]

the closing was good.After Y2 stress increases because dislocation entanglement takes place which increases the stress(or resistive load).BTW u very clearly explained what is restive load and stress.

[@herotodusuniverse7419]

A true masterpiece.

[@arjunoralakkote1522]

Extremely helpful classes... please upload more classes about advanced mechanics of solids. Waiting.

[@shefeerms652]

Best in best

[@lekhrajdewangan8491]

Thank you so much sir, you explained very well I am speechless sir

[@s.senthilmurugan382]

Wonderful, excellent lecture

[@sudarshannikam5243]

Thanks for this explanation but ,Sir how you say strain is the Cause and stress is effect? Stress is (Force / Area) and force is applied by external sources. Means force will be the Input . Similarly strain is the effect which gives us ratio of elongation to their original length . That means elongation should have result due to input force per specific area .It seems strain will be Effect. Strain is behavior or property of martial while goes to applied Input force . Sir please explain the doubt.

[@RAVIKUMAR-fe4cn]

very clear

[@pillivineeth5103]

I liked your channel name...super sir..

[@sudarshannikam5243]

Sir if atom has that much power of bonding then why they cant retain initially at plastic state . Or why doesn't that power of bonding consume at plastic zone to retain it? I am talking about up going curve at " U" point.The bonding power once which fails to retain yielding or cause to plastic state then how it generate again to increase stress. Sir please explain the doubt.

[@SONUKUMAR-gh3tc]

Thank you so much sir... Really excellent explanation on this topic.. 👍

[@educationalgeeks5999]

super sir'plz explain iron carbon equilibrium diagram

[@karthikraja6315]

the scientific meaning of fracture stress is less because the area of section after the ultimate load is less and stress is less because P/A is less ie A - less - Please advice the understanding sir

[@paramdarshana2267]

Clearly explained sir

[@dhandacivil1767]

Very gd explanation

[@vigneshkanagaraj2829]

fantastic explanation sir, i clearly understand and my doubt is after ultimate stress point the materiel of atoms bonding suddenly break or it lose its bond gradually.

[@whoever9703]

Well done sir I'm impressed the way u explained. All I want is what you are explaining you have it written so I can get as PDF???

[@avaritiabaritia]

Underrated channel, man. Epic video for real. Thanks a lot. I just got one question though. What is the region between E and Y1? If the elasticity stops at E, then doesn't it also mean that plasticity starts at E? Can you please explain the difference between leaving elasticity and entering plasticity? Thanks in advance.

[@sanjeevinamdar5750]

Sir, Respect, when you say dislocations start, do you mean the dislocation motion starts?

[@thehappyfaces6083]

A perfect explanation sir, whats the difference between engineering stress-strain curve and true stress-strain curve sir??

[@sriramtagoreshivakumar8579]

what's stress vs strain curve for rubber? u explained stress strain curve for tensile load, how will be stress strain curve for compressive load?

[@sahilbhagat211]

Thank you very much

[@8956570639]

really amazing

[@tfi2452]

Very nice dear. Thanks you to offer me this video.

[@RohitChowdhury_sajaysaini]

Thank you sir for your precious comment.

[@premchopde9199]

U r doing a great job! Please make videos on velocity & acceleration analysis!!

[@srikanthkalluri318]

Hi sir, Video is very clear in all aspects (good explanation), I have a doubt, speaking about ductile material, whether we design based on yield strength? which yield point we consider (upper or lower)? If it is lower then y not upper(vicevesa)? yield point is in plastic zone then when we release load it will not regain to its position, still we prefer yield y? Could u help me in resolving

[@anuchandran3676]

thank you very much sir. may god bless you.

[@koteeswarareddym5036]

Explain sir what's is reserve strength of Steel

[@101fady]

Can you explain the Fatigue Test please?

[@saikirannm6194]

Superb sir

[@cadcamtamil881]

Sir upload more video on thin cylinders Good work sir...thank you sir

[@hemachandra2680]

mech it easy is good

[@thirurain1629]

Sir, why didn't obey hooks law after proportional limit to elastic limit

[@zahidhamid9285]

Very nice explanation Sir But i think there exists a yield plateau as well in this curve which i haven't understood clearly yet and why the yield plateau is somewhat of wave nature

[@pantalmgaurav]

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[@zhandosaskar1818]

Hello, what will be final strain if we stop applying stress in plastic region?

[@s.senthilmurugan382]

Sir I have doubt about calculation of Young's modulus If ultimate tensile strength of material is 178 MPa Total strain or ultimate strain is 0.098 E=178/0.098 The above is correct or not

[@RohitChowdhury_sajaysaini]

No it is not correct. You can not use this linear relationship (Hooke's law) beyond proportionality limit.

[@sanjeevinamdar5750]

At, Y1, do you mean dislocation motion starts, Slip starts. Not breaking of the bonds. Am I right?

[@RohitChowdhury_sajaysaini]

Yes dear.

[@Pa-up8ek]

Thanks bro.....for your keep updating.

[@RohitChowdhury_sajaysaini]

Thank you very much

[@paramdarshana2267]

Yes like this name

[@Nicolebedine]

I am taking this course, my prof is very hard to understand, but your videos are very helpful. I am just requesting if you can make a video about Goodmans diagram, endurance limit. my exam is in 2 weeks and this is just the basic things i need to understand in order to understand other thanks. thank youuu

[@RohitChowdhury_sajaysaini]

Soderberg and good man diagram explaination you will get it very soon.. And endurance limit I have already uploaded.

[@RohitChowdhury_sajaysaini]

You will get all my lectures on machine design playlist in my channel.

[@Nicolebedine]

can i say thank you a million times, thank you sir

[@s.senthilmurugan382]

I subscribed ur channel

[@koteeswarareddym5036]

Explain sir what is reserve strength in steel

[@rzgarasadd2395]

thank you so much sir very usefull , but i coudnt understand from strain hardening ,how stress more increase when material lacked bonds ?

[@RohitChowdhury_sajaysaini]

At the upper yield point bonds breaks And the stress actually drops from upper yield point to lower yield point. Then the rebonding takes place with the new neighbour atoms. And that's when the strain hardening starts. And thus the stress induced again increases upto the tensile strength of the material. Thank you. Dear if you study material science subject things will get more clear. This lecture of mine is just a preliminary one where I assume that a student does not know any thing about dislocations, slip system, plastic deformation etc:- In my next lecture I shall discuss the above mentioned topics from material science approach.

[@krishang7469]

Super sir

[@saikirannm6194]

Superb sir But I am having one doubt Why mild steel Why not other metals to draw stress strain diagrams

[@shanmukt3147]

They might have tried on other specimens also..but in mild steel we can observe all points.. that's why we refer mild steel maximum... I guess...

[@kannanme7835]

sir, facture stress is above yield point or below yield point.?..... and why???

[@RohitChowdhury_sajaysaini]

Fracture stress is above yield point.because its the region where material fails or breaks ..but yield point is not that point where a material actually technically breaks...it is a point where plastic deformation starts and quite a few its not desirable...and for ductile materials we consider it as a failure point..although the material actually has not broken...so failure not only means breaking..it simply means that we can not use it any further

[@kannanme7835]

@@RohitChowdhury_sajaysaini thanks sir..

[@utkarshraj6961]

Decrease in resistive force

[@rupeshkumarsoni4554]

Name is good

[@RohitChowdhury_sajaysaini]

Thank you for your feedback

[@poornachandarchandupatla8924]

Sir uplod bending&shear stress in beams

[@RohitChowdhury_sajaysaini]

Yes. You will get it

[@pradgadagkar8557]

Yield not yeild