Shear in Beams Model

This model makes it easy to understand how shear stresses develop in beams. It was inspired by a photo in the 1976 textbook, Mechanics of Materials by E.P. Popov.

And our Engineering Models Channel

0:00 What You Can Learn From the Model
0:18 Imagine The Model to Be Part of A Longer Beam
0:34 Think About the Bending Stresses That Would Be Produced
1:03 Think About How These Stresses Generate Moment
1:46 How Shear Loads and Stresses Arise
2:41 How Shear Loads (Stresses) Are Different from Normal Loads (Stresses)
3:10 Shear Forces At Another Location in the Flange
3:31 Shear Forces Between a Flange and the Web
3:50 Shear Forces at Several Locations in the Web
4:20 Forces in Fibers Below the Neutral Axis
5:01 Converting Forces to Stresses
6:05 Plotting Shear Stress as a Function of Position
6:45 How to Calculate Shear Flow in the Flanges
7:43 How to Calculate Shear Flow in the Web
7:53 The Shear Flow Diagram
8:05 The Shear Flow is Consistent with the Shear (V) in the Beam
8:48 Making Sense of These Calculations Using V=dM/dx
9:28 Closing and Credits
9:42 *** A Worked Example ***

[jamesramirez]

I almost never comment on youtube videos, but as a student in an undergraduate engineering program, your video has demonstrated the shear stress, and shear flow concept better than a semester of stress analysis has. Please continue to produce these videos as they are indispensable to the future engineers fundamental understanding of these concepts which otherwise just get muddled and only the application of the math is understood. Great job as always and I will continue to support this channel.

[tjraina]

I recognized this voice the moment the video started. You were my professor for CIVE 306; easily one of the best profs I've had.

[alessandromorelli]

I FINALLY WATCHED EVERY SINGLE VIDEO ON THE CHANNEL
Yay!
I am already an engineer but had forgotten about a good portion of this stuff, helped me remember a lot

[mhoover]

Watching this video was shear pleasure.

[Musicislifeever]

Why did you guy's quit making these? THEY ARE AMAZING! And you guys were doing a great service for the curious people of the world. Thank you for them. Please consider making more!

[dhavalmysore]

Excellent explanation and demonstration! This feels like a lost art since I've seen something like this in the retro videos. Irrespective of whether one uses a physical model and/or animation, a clear, thorough, pedagogical explanation is the crux of such a presentation and you have done an excellent job at that.

[kingdomman]

I sincerely appreciate the effort dedicated to make videos like this. You help students much more than you think.

[eranlevin]

Where have you been all my (professional) life. This video so beautifully explains what shear flow is, and how shear stresses relate to the bending moment and applied forces.

[ebaahaider]

I have never seen anyone explaining the ideas this simple and easy
I hope you make more videos
and help us understand more.

[markspc]

Best explanation of shear flow stresses in a beam that I have ever seen ! Thank you.

[kulkarniacademyofmechanica]

The best that I found on YouTube till date. Thank u sir

[Victor-inbs]

I miss having physical models in class. This is so much more intuitive!

[MeniscoManeiro]

If this videos were made more often, this channel would BLOW UP

[serjerzemin]

I appreciate it very much Mr. Professor. This is the most elaborate explanation I have ever seen on Youtube. Thank you for your great efforts.

[andrewbismire]

Best shear flow explanation I've ever heard

[rajumeena]

Everything is crystal clear now... Thank you engineering models 👍

[biffsaxon]

I wish I could have had this explanation as a student. Incredible!

[manishaprajapati]

Amazing ....one of the bestest explantion on ub tube about shear stresses.in beam. 👌👌

[aniketghoman]

Thank you for such an outstanding explanation on shear distribution. It makes my life much easier now 🙌🏻 !

[rogeramjet]

Absolutely incredible explanation of something that has always bugged me for years.