Calculus 3: Tensors (3 of 28) What is a Dyad? A Graphical Representation

In this video I will explain the physical graphical representation of a tensor of rank 2, or a dyad. A tensor of rank 2 has 9 components, which means there will be 3 vectors each representing a force or stress or something requiring x-, y-, z- representation.

Next video in the series can be seen at:

[jackal]

I wish this video was available in 1975, in my junior year of ChemE. I first saw this in Transport Phenomena I, in Bird Stewart and Lightfoot. Was totally dazed and confused. Barely got a C in that course. Finally, 45 years later, I understand. Too bad I've retired; though better late than never - at least I can die in peace. Thanks so much

[aspenlolo]

I think top-right component should be Tau_xz and not Tau_xy? Pointing it out in case of someone who's fresh to the topic would become confused. Anyway, best channel on Youtube. Thank you as always sir.

[rieske]

Thanks a million of set of lectures on Tensors. Crystal clear again.

[password]

Sir, you are the best physics teacher I have had. I will always be grateful for your lectures.

[assimfacilita]

The best teacher I have ever seen! Thanks Sir! God bless.

[shiningoyfitness]

Cannot explain in words, how helpful your lecture is to me to understand the concept pf tensor. Thank you so much sir !!!🙌🙏

[terencewright]

Excellent video showing a practical example. Thank you.

[cebrailcoskun]

So now its clear what a tensor is :) Thank you for such an amazing explanation Mr. Biezen.

[rouadaghstani]

The stress and shear notations really help thank you

[sarikasoni]

Sir plz teach us QM too...i have lots of doubts and there is no such a channel as like your...plz could u make some videos on hydrogen atom and some examples on it...this will be very help ful for me...thnx for this video

[jastu]

Hi Michel I think you have made a minor mistake in that the second component of your subscript for tau in position 1, 3 should be "z" rather than "y".

[sidhantmohanty]

brilliantly explained tensors thanks a lot sir!

[amarnath]

Sir I pursuing mechanical engg and I came to know this concept in strength of material subject, . why does we considere the cube element for stress analysis and what does it mean that on x plane we have three stress i.e sigmax, touxy, touxz, and similarly on other plane also .please reply sir

[ahmettahiri]

Sir, will you cover the differentiation of tensors or not ?

[asiancollegeofteachers]

Sir, I think, there is a mistake.
In the first row the third element should be xz. Both of them cannot be xy.