Mechanics of Materials: Lesson 49 - Max Shear and Principal Stress with Equation Method

Top 15 Items Every Engineering Student Should Have!

This video is NOT sponsored. Some product links are affiliate links which mean if you buy something we'll receive a small commission.

Please consider supporting the channel by subscribing, commenting, and liking each video. This moves these videos up the search list and helps me greatly. Thank you for watching.

This video is copyrighted by the Jeff Hanson for the private use of our audience. Any other use of this video or any pictures, descriptions, or accounts of the video without written consent from Jeff Hanson is strictly prohibited.

[zEre]

love the cat!! thank you so much for the videos, so helpful

[twinplayerz]

This video couldn’t have come at a better time… much needed. Great lessons back to back to back and back. Please keep posting these video and for future courses if possible!!!

[HPalardy]

Awwww kitty! Thanks for all of your videos!

[MAShahriar]

13:03 well a native speaker making this mistake knowingly or unknowingly I don't know but, he's absolutely a genius when it comes to teaching mechanics! ❤

[smwalighazi]

Sir, no doubt your way of teaching is far more better than my college teachers. But can you also plz describe what is meant by principal stress and max in plan shear stress

[OwnieHaachipuka-yzvf]

Having exams tomorrow and this has totally been helpful, thank you.👍

[aybaws]

For the equation in the lower left (TauMax equation), I think the dividing 2 also should be squared.

[tommysteakhouse]

watch out if u copy the equations from his board, he made the following mistakes: in the equation of THAUmax, the term under the root should be ((Sx-Sy)/2)^2 not ((Sx-Sy)^2)/2, same mistake in the formula for priciple stesses S1 and S2, hope this helps :)

[ralual]

23:10 Just to clarify for anyone who got confused like me, they should add up to 90 degrees if you take them both as positive (same as theta p should), not 45

[manuboker]

Wonderful solids lessons!! really taking the time to explain the problems along with a good sense of humor :))

[FatSlowButter]

studying for an exam rn thank goodness you posted this recently

[ethanboba]

Thank you for posting these videos :) Please continue updating the playlist !

[JesseTheG_]

I'm not a cat person but stripes seems like a distinguished gentleman

[Ramy]

thanks for your effort, but i have a question, in fatigue problem when designing a shaft with gears you know torque changes at the same point of gear, can i take this as a torque fluctuation to get the Ta & Tm ( alternating & mean torque )?? or consider always torque is constant ???also when can i consider Mm ( mean or average bending moment)for a rotating shaft(so bending moment at same point changes from + to - with same magnitude ) is not equal to zero or is it (Mm ) always zero???

[jhononillgalvez]

I didn't understand how to know the direction of shear stresses in each phase.

[centriminal]

It's like when you remember war memories 2:07

[Theguywithephonyname]

7:00 now that cleared things for me😂, always confused me whats the sign of a shear stress. I know that shear in counterclockwise is pos and shesr in clockwise is neg, but that face and direction made all the more sense in determining the sign.

[mindfull-_-]

I'm like stripes I'm so stressed out 😂😂

[HenryBriskin]

This is all thanks to a man named mohr

[zachrosedahl]

Your allowed to bring your cat to the college ?