Combined Loading 3-D Example (Part 2) - Mechanics of Materials

[@ceciliaallor9561]

You are a beautiful human being. Seriously, I'd be so lost without you. Thank you for not taking any shortcuts!

[@FioDavid767]

Crazy how this was made when I was 12 and now I am watching this in my first-year mechanical engineering being 19, learning from this. Thank you for not taking shortcuts and explaining why you are doing things, and of course, keeping it fun with jokes! You are helping more than you think!

[@ibrahimjaafar6172]

this thing from 2012 is still saving us in 2020, thats what we should be investing in

[@structurefree]

Yessss! Old school for the new school.

[@justinfoto]

I really appreciate you labeling the faces. You da real MVP. Structure freeeee!

[@optimisePrime79]

That was really well described. You just tied in 2 whole courses on stress and failure analysis perfectly. Awesome work, thank you!

[@alexenriquez1061]

Such an easy way to use basic statics knowledge to explain this kind of problems! Great video!

[@tetw34]

you are a god send man. you videos are simply amazing. I learned from this video what my teacher has been attempting to teach in a month

[@danaangelupongan8746]

My teacher in our school is useless! Dude you're helping me pass my course! Woohooooo baaam thaaaanks!!!!

[@j.s.s9108]

you're an angel you got me out of loops of confusions

[@Samcanplaymusic]

Dude, you are a phenomenal teacher.

[@talhakhalid8547]

You are an AMAZING person. Seriously, a gift from God . Keep up the work

[@mateope10]

So much better than my teacher :) all my thanks to you!

[@MM-hs7xo]

Amazing lectures, find your video right the night before final. Great Video!

[@Machiniacal]

have a test on this stuff in half an hour. And now i might pass it, thanks!

[@commandconquerfitness1506]

Thank you Dr. Lee! I wish I had you for mechanics of materials in session three this summer!

[@thobi6639]

Its been a journey. Thank you for that clarification!

[@structurefree]

"Ain't about how fast I get there Ain't about what's waiting on the other side It's the climb" - M. Cyrus

[@emelyr8506]

You are such an amazing teacher! Thank you for this explanation.

[@amatoallahouchen5894]

that was brilliant and extremely instructive thanks a million!

[@Awakentogrowth]

Professor: You will learn this next year Next year's professor: You should have learned this last year Structurefree: You are going to learn this and there is literally no better way

[@structurefree]

Ball so hard mofos wanna find me...

[@prerakvaishnav7512]

You are a life saver. I needed this

[@kabbirhossain7816]

Who else feels the same joy as him at the end of the problem where we get the 2D element?

[@laurahernandez6595]

Simply amazing work! I actually understand what's going on with the hw! Thank you! wish me luck on my Final!!!!

[@NSBeverything]

wow....great example of combined loading...tq

[@nickknauer15]

This is great thanks man, this really helped a lot. I can actually pass this test now!

[@layu83]

almost like an angel sent by god thank you so much may god bless your soul

[@agggg3524]

Sure it is a nice problem. You have covered a great amount of applied theory from mechanics of materials. Not realy the 75% but it is still good enough. More videos pls!!

[@Hitori06]

You're great! Such a fun lecture

[@holdentranquillo6605]

Thanks for this vid helped me out a lot

[@masonhong6106]

watch this tube!! recommended. well made. thumbs up~!!!

[@kking9001]

I frickin love you man

[@jee-mains]

you made a simple problem very lenghty

[@brianwin5183]

Thank you.

[@abdulrahmanradwan2046]

Nice

[@mohammedalameri4763]

Thanks for the great video. you should consider teaching.

[@CoolEnd88]

thanks a lot man.. these stuff were helpful

[@NoLimitsThings]

This helped a lot, thanks.

[@hamza23ozil]

Why is the stress state in the final plane in the x direction and not the y? How did you determine that?

[@OMGitzBadCompany]

How did you know to draw the final 2D element in the orientation you did? Why not 90 degrees to that for example?

[@structurefree]

+xNo L1m1tZx it depends on the cut, the internal loading, and the stress profile.

[@hulkonsteroids7360]

in final 2D element normal stress y=0 always? there should only be 1 normal stress right? some problems have normal stress y and x w/ shear and plot it on mohr's circle

[@irislu815]

this is very helpful !! thank you!!

[@dalonsosigrah]

gooood stuff

[@shivamp5410]

Why is shear stress 0 due to Vz???

[@agggg3524]

Shear force causes a small shear stress compared to the normal force caused by a moment. Compare tau_B on Vx 212 psi vs. Sigma_B on Mx is 6 11 ksi. Ksi is way bigger than psi.

[@robertbrown7466]

In this example you used the z-axis as the neutral axis, I'm just wondering why?

[@michelleleonrosero2997]

At 6:57, would someone be able to explain why the My (Torque) is going in that direction? He said My acts CW, is this a sign convention for determine the direction of shear force ? Thank you in advance!

[@JaxRayne]

I'm a little confused on the end part. I thought M_x can only create a normal stress in the y direction, so shouldn't we end up with sigma_y and not sigma_x?

[@structurefree]

JaxRayne M_x and M_y cause stress normal to the cross-section...it's like biaxial bending. to get a normal stress in the y (sigma_y)...this thing would need to be a pipe and have some internal pressure.

[@JaxRayne]

Ah thank you! :)

[@diaaeldinismail6496]

structurefree but the force in Y directon causes normal stress plus bending monent Mz

[@shivukuderu]

which application you are using for presentation please?

[@basmahota2080]

why is My a shear force but Mx normal?

[@carloq1987]

wasnt Ny -800 ksi so isn't that in compression and not tension?

[@structurefree]

carloq1987 are you referring to force or stress?

[@Hitori06]

no Ny was -800lb* meaning it points out of the cross section instead of into the cross section which makes it a tension stress.

[@alexanderclark6889]

7:09 "WHHHHOOOOOOOH"

[@katelinomecinski4173]

why is shear stress due to V(z)=0?

[@structurefree]

+Katelin Omecinski depends on the location of the cross section where the stress is being calculated.

[@pjobryan1]

not really the best answer..... is it because Q become zero? is it a rule that when we find shear stress on a same axis the shear force acts its zero?

[@farahizzah4939]

thank you so muchhhhhh

[@devvv4616]

why is Mz=0??

[@dl3537]

you're out of your mind man

[@karanchowdhary5969]

Vedio quality unable to see clearly

[@FawazBnMohammed]

dislike, i get stuck a lot in your videos. you dont explain why you chose this area or why that value is zero etc. you just say that is zero and thats it. you dont spend more than 3 seconds on it. so annoying