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!
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
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!!
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!
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.
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
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?
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.
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
You are a beautiful human being. Seriously, I'd be so lost without you. Thank you for not taking any shortcuts!
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!
this thing from 2012 is still saving us in 2020, thats what we should be investing in
Yessss! Old school for the new school.
I really appreciate you labeling the faces. You da real MVP. Structure freeeee!
That was really well described. You just tied in 2 whole courses on stress and failure analysis perfectly. Awesome work, thank you!
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
My teacher in our school is useless! Dude you're helping me pass my course! Woohooooo baaam thaaaanks!!!!
Such an easy way to use basic statics knowledge to explain this kind of problems! Great video!
Amazing lectures, find your video right the night before final. Great Video!
you're an angel
you got me out of loops of confusions
So much better than my teacher :) all my thanks to you!
You are an AMAZING person. Seriously, a gift from God . Keep up the work
Dude, you are a phenomenal teacher.
that was brilliant and extremely instructive thanks a million!
Thank you Dr. Lee! I wish I had you for mechanics of materials in session three this summer!
have a test on this stuff in half an hour. And now i might pass it, thanks!
You are such an amazing teacher! Thank you for this explanation.
Its been a journey. Thank you for that clarification!
"Ain't about how fast I get there
Ain't about what's waiting on the other side
It's the climb" - M. Cyrus
You are a life saver. I needed this
wow....great example of combined loading...tq
This is great thanks man, this really helped a lot. I can actually pass this test now!
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
Ball so hard mofos wanna find me...
You're great! Such a fun lecture
Who else feels the same joy as him at the end of the problem where we get the 2D element?
almost like an angel sent by god thank you so much may god bless your soul
Simply amazing work! I actually understand what's going on with the hw! Thank you! wish me luck on my Final!!!!
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!!
Thanks for this vid helped me out a lot
watch this tube!! recommended. well made. thumbs up~!!!
This helped a lot, thanks.
thanks a lot man.. these stuff were helpful
this is very helpful !! thank you!!
I frickin love you man
Thank you.
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!
you made a simple problem very lenghty
Thanks for the great video. you should consider teaching.
gooood stuff
Nice
Why is the stress state in the final plane in the x direction and not the y? How did you determine that?
which application you are using for presentation please?
Why is shear stress 0 due to Vz???
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.
How did you know to draw the final 2D element in the orientation you did? Why not 90 degrees to that for example?
+xNo L1m1tZx it depends on the cut, the internal loading, and the stress profile.
thank you so muchhhhhh
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
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?
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.
Ah thank you! :)
structurefree but the force in Y directon causes normal stress plus bending monent Mz
In this example you used the z-axis as the neutral axis, I'm just wondering why?
7:09 "WHHHHOOOOOOOH"
wasnt Ny -800 ksi so isn't that in compression and not tension?
carloq1987 are you referring to force or stress?
no Ny was -800lb* meaning it points out of the cross section instead of into the cross section which makes it a tension stress.
why is Mz=0??
why is My a shear force but Mx normal?
why is shear stress due to V(z)=0?
+Katelin Omecinski depends on the location of the cross section where the stress is being calculated.
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?
Vedio quality unable to see clearly
you're out of your mind man
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