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It was great, thanks for the clear explanation

In the case of edge dislocation, we extra have half plane that creates the dislocation line. In screw dislocation, what does make dislocation line?

Sir, as you said that in some case it is difficult to identify the point Y i.e yield point, then we have to obtain the point P. In both the case there should be three point on the stress-strain curve naa??? Either A,B & Y or A B &P. Why are you showing all four point on single Stress vs Strain diagram??? And one more question is there , in case where we are unable to identify point Y, we identify the point P. The point P we call proff stress can we call it Yield stress , vice-versa????

Very nice lectures sir. Thank you so much for taking such a wonderful lectures. I have one small request, can you please tell the refrences (books,papers etc) which you have used for these lectures.

Hi i dont get what happen if there is an incoherent phase, what effect does it have on the dislocation motion, does a dislocation can travel through it ? And thus what is the effect on the hardening if there is a non coherent phase ?

Thank you so much for also covering fracture mechanics!! It was a great explanation. I really enjoy all of your lecture videos! 😃😄

What I do not understand is how to define the sign of \hat{t}?? Is it pointing in or pointing out the screen plane???

Amazing video!

this is so helpful. clearly explained. thank you so much!!

Sir ye topic elastic energy dislocation hai kya

Can you please make a video on what happens at atomic level during tensile testing of ductile and brittle materials (explaining all phenomena like elastic deformation, upper and lower yield point, slip deformation, necking, cup and cone fracture, etc)?

thank you! this video is really helpful, i wrote my final task about Hall-Petch relationship based on your video and got an excellent mark!

Very nice explanation.

Fantastic

tks i got it easily with ur lecture

Where can I get the solution of cubical equation?

Sir, b2 berger vector is flowing from slip plane to another slip plane. How is that possible? Because t2 is the dislocation line, it should have two separate planes in its both ends, one sliped and the other unslipped.

This was a great explanation.

Hello, why is it shear stress vs gamma strain, and not stress vs strain?

Well explained Sir..... I got the whole concept.... Thanks

sir at 5:05 why are you taking counter clockwise from reference line A? It will be clockwise Please clear this doubt

Great lecture sir , greetings

preparing for exams based on your lectures

Thank you for the valuable lectures

Thanks a lot

Since Stress is function of strain. If we apply some force on a material having some certain cross-sectional area and it doesn't show any deformation (strain). So what would be stress , zero???? Or force applied divided by cross-sectional area.??

Thankyou sir

thank you sir

thanks sir

just wow

this one lecture is enough to make me watch all your lectures sir

Thanks sir

Would you please redefine X bar in Y(plastic strain)

thankyou very much sir for these series of lectures!!!!!!!

why the n of dislocation creep is 0? won't more grain boundaries serve as the barrier and stop the dislocation gliding? By the way, I really live on with your videos😭😭😭😭 thank you so much

Hello

Excellent explanation. Specially I was looking how to proof symmetry of strain tensor.

Bhaiya tell us something more about motion of kinked and joged dislocation:conservative and non-conservative

cannot understand why the power of the ra is 2 but not 3 in the misfit volume

Thanks for such quality content sir, do you conduct any courses on nptel?

Thank you very much for your teaching

can u please share notes

Very informative lecture, Sir. I am a student and I have creep data I want to apply the time-temperature superposition principle to generate a master curve. is it possible to get the code file? Thank you

HELLO. I AM STUDYING METALLURGY AND MATERIALS ENGINEERING IN TURKEY. I WANT TO USE SOME OF THE PHOTOS IN THIS VIDEO IN MY FINAL THESIS. DO YOU HAVE A STUDY RELATED TO THIS I WOULD LIKE TO REFER TO?

You shown how to determine C-values of the compliance Matrix for an isotrope cubic material. Thanks ! What about for anisotrope and orthotrope Material?

32:41', in screw dislocation, as also shown in the pictures, the movement of the dislocation line is perpendicular to the dislocation line. Still, in the yellow box, the text says it parallels the dislocation line! Why? Is that a mistake in the text or did I not get it correctly?

Very usefull for physics students also....sir could you plz tell us few reference books

sorry professor, I have no idea why there are only two 2 fold symmetry in orthorhombic. I think there are three. BTW, I really love your videos, they are really really helpful.

Cleared many confusions.. Thank you sir

These videos are absolutely amazing. Thank you!