I've taken (and passed, incidentally) exams with Von Mises & Tresca stress questions, but I haven't understood any of it until watching your videos. Thanks!
you may never realise how you affect people online like this but thank you for everything you have done, the despair you feel when you just cant get a topic is totally destroyed by the relief i feel after watching some of your videos cheers from New Zealand
This is exceptional content. Thanks so much for your wonderful lecture. I have never completely understood the fundamental concept of Von Mises until today. Thanks again!!
thank you sir I'm an industrial designer. your videos have helped me a lot in my way to get familiar with mechanical design features which I need from time to time in different projects. I should say that these are much more easier and more meaningful than reading SHIGLEY . Thank you again.
Cheers man, you compare & put the tools into perspective & why use them as opposed to just memorising the rules; damn appreciated - we don't get enough of this in education.
Thank you so much for making this video. I've been trying to understand when to simply compare stresses to the yield strength and when to use a failure criteria.
I've went thru the courses that talks about Mohr's circle, principle stresses etc…. but as a student, I was always confused as to how one go from Macroscopic loading on a part, to the microscopic Stress Element. I suppose Rosette strain gauge measurements would be the way to go?
Hi , I love your videos and I recommend them to any people in my program having trouble with applied mechanics or strength of materials. Could you by any chance do more videos on failure theories and maybe some on the more advanced types as well? Thanks again
In the principal stresses graph, if sigma_yield is equally far apart in both the sigma 1 and 2 direction, why is von Mises and Tresca ellipses (or close to an ellipse for tresca) and not just a circle?
excuse does this v.mises stress counts for buckling i'm structural engineer and i want to know if this would be ok if i use it and compare it to yielding and ignore buckling
Can anyone explain me this part at about 7:10 "If vonmises stress is lower than yield then you know it experiences failure, if vonmises stress is higher than yield then you do predict failure"
+Hai Phan , I think you have misunderstood.The rigth thing is If von mises stress < yield you do not experience failure . If vonmises stress > yield then you do predict failure".
Probably because both are having same signs(+ or -) in quadrants 1 and 3 and hence experience similar type of stress (tensile or compressive) in those. Where as they experience a mix of tensile and compressive in the other two. That's what I could get out of it
Has been so many years and I still come back here. Thank you sir. You still are a freaking rock star!
I've taken (and passed, incidentally) exams with Von Mises & Tresca stress questions, but I haven't understood any of it until watching your videos. Thanks!
please keep the good work , we are missing your lessons long back
you may never realise how you affect people online like this but thank you for everything you have done, the despair you feel when you just cant get a topic is totally destroyed by the relief i feel after watching some of your videos cheers from New Zealand
Never get enough thanks to these videos!
This is exceptional content. Thanks so much for your wonderful lecture. I have never completely understood the fundamental concept of Von Mises until today. Thanks again!!
thank you sir
I'm an industrial designer. your videos have helped me a lot in my way to get familiar with mechanical design features which I need from time to time in different projects. I should say that these are much more easier and more meaningful than reading SHIGLEY . Thank you again.
Logical, clear, and understandable. Thanks a lot. Looking forward for more of your videos.
You are the best. God knows how much i have learned from you.
Cheers man, you compare & put the tools into perspective & why use them as opposed to just memorising the rules; damn appreciated - we don't get enough of this in education.
your explanations are simply brilliant. Thank you for doing what you are doing!
Thank you so much for making this video. I've been trying to understand when to simply compare stresses to the yield strength and when to use a failure criteria.
Seriously, thank you for this video! You are a great professor and I really understood everything that you explained. Cheers!
This is a perfect explanation of Von Mises!!!!!Thanks!
Awesome video ... Thank you very much for your time to record this valuable video ...
best video on this that ive seen so far, thank you
Thank you very much. You are really helping me to understand all the stress concepts.
nice simple and lucid explaination
I've went thru the courses that talks about Mohr's circle, principle stresses etc…. but as a student, I was always confused as to how one go from Macroscopic loading on a part, to the microscopic Stress Element. I suppose Rosette strain gauge measurements would be the way to go?
Hi , I love your videos and I recommend them to any people in my program having trouble with applied mechanics or strength of materials.
Could you by any chance do more videos on failure theories and maybe some on the more advanced types as well?
Thanks again
Treasure of Knowledge !!!
In the principal stresses graph, if sigma_yield is equally far apart in both the sigma 1 and 2 direction, why is von Mises and Tresca ellipses (or close to an ellipse for tresca) and not just a circle?
Thanks for amazing video ! It really helped me to understand this equation
very good video, learned a alot.
that was really good. Although I am not an engineer student, I could learn a lot of things from you. thank you
very good and understanding lecture !!!!
excuse
does this v.mises stress counts for buckling
i'm structural engineer and i want to know if this would be ok if i use it and compare it to yielding and ignore buckling
Thank you, I'm gratefull for your lectures
super good keep it up
Thanks! Can i say when a piece i construct, has a lower mPa in stress - that its stronger?
Can anyone explain me this part at about 7:10
"If vonmises stress is lower than yield then you know it experiences failure, if vonmises stress is higher than yield then you do predict failure"
+Hai Phan , I think you have misunderstood.The rigth thing is If von mises stress < yield you do not experience failure .
If vonmises stress > yield then you do predict failure".
+Agustin Ruiz Thank you, I got it now!
Von Mises. Just in time for 3rd year.
"Because it's helpful to have a more sophisticated definition of what constitutes failure."
Thank you very much for your excellent lecture
sir, i want the exact definition for what is von mises stress?
Excellent!!!
very good and understood video . thanks a lot
THANKS!
why do sigma 1 and create a square in quadrants 1 and 3; and a triangle in quads 2 and 4??
Probably because both are having same signs(+ or -) in quadrants 1 and 3 and hence experience similar type of stress (tensile or compressive) in those. Where as they experience a mix of tensile and compressive in the other two. That's what I could get out of it
What about Tresca?
this is perfect description ,,, your r perfect
Thanks alot!
Thank you sir. That was helpful
You are most welcome. Sounds like the video did the trick for you :-)
RMF
Von mises and Equivalent stress is the same?
what are σ1 and σ2?
shylildude are the principal stresses
or the Stresses in the Principal Directions.
What's your name my prof?
i love you
Sigma x and -sigma x in x direction