Mechanical engineering - educating students on solid mechanics and machine design topics. Some math, some lab stuff, some things get broken from time to time.
Couldn’t find this answer anywhere else. You just saved my chem lab report.
@lagentall4 ай бұрын
Great video! Thank you very much
@caetanovega7 ай бұрын
What would give you the value of N?
@stephenkuchnicki79565 ай бұрын
If I'm tracking your question correctly, the value of N would be whatever normal force you find from the loading. That's always the key here - before we can do anything with stress, we need to know the loads. In two dimensions, we're interested in the normal force perpendicular to the plane (N), the shear force parallel to the plane (V), and the bending moment that is trying to curve our structure (M). For example, if you think of a truss, the value of N would be whatever force you find inside the member of the truss. By definition, a truss has no shear and no moment.
@waroftheworlds20089 ай бұрын
3 years later, still useful. Thank you.
@matthewcameron4510 ай бұрын
the ads are really excessive
@albiesharples4545 Жыл бұрын
great video there is also just a formula to bang out a angle so you don't have to measure it this is in python but you could use it in excel <========= is the part that calcs angle ClrHome Input "σxx: ",A Input "τxy: ",B Input "σyy: ",C (A+C)/2→D √((A-D)^2+B^2)→R (tan((2*B)/(A-C))/2→G <========= D+R→E D-R→F Disp "" Disp "ε0: ",D Disp "R stress Max: ",R Disp "Angle θ: ",G Pause Disp "Princaple εmax: ",E Disp "Princaple εmin: ",F Pause
@mariamabdu5069 Жыл бұрын
why is my 0.2% above the stress strain graph? someone respond because its time sensitive (:
@user-fn5jr9vh5x Жыл бұрын
how can I also have the angle of rotation drawn? Do you have a code for me?
@joshuamendez425 Жыл бұрын
great video saved my lab report thanks a million
@owenchamberlain9731 Жыл бұрын
Absolute baller video real alpha male shit, thanks G
@me_3rd_19_sagar6 Жыл бұрын
thank you sir
@rileymccue3641 Жыл бұрын
Thank you! this helped a lot
@sadiheda7959 Жыл бұрын
I don't get it, how can we say it's an ellipse in the first place? It's xy in (x/a)² +( xy/ab) + (y/b)² = c² that I can't understand.. shouldn't it be just (x/a)² + (y/b)² = c² to be an ellipse?
@terryhogan29712 жыл бұрын
Sy = 42 ksi? I think you really meant the intersection looks more like about 38 ksi.
@albabhuzaifa68532 жыл бұрын
Thank you!
@kody0332 жыл бұрын
Thank You!!! You saved me so much time in my life (:
@NasimAkhtar-uy6lb2 жыл бұрын
Reading wrong stress value of yield, while seeing the graph that obviously contradicts.
@magedqasem74032 жыл бұрын
Thank you Sir for a really good explanation. Is there any possibility to explain kinematic hardening using Von Mises with the plot in excel?
@alanlawkh2 жыл бұрын
This is so cool! would you mind sharing the excel?
@cade95712 жыл бұрын
Thank you this saved me
@IntrospectiveMinds2 жыл бұрын
Thank you Stephen!
@Jaffa__2 жыл бұрын
Thank you! god's work right here
@LukeTheFist2 жыл бұрын
Hello, thank you very much for this video! It's very helpful. I just have two remarks: 1. In the equation for the 0.2% offset strain, I believe the 0.2% alone is not right. As it is a relative value (0.2% of what?), it must be multiplied by the total plastic strain. Therefore, the equation should be =CV+0.002*MAX(Strain column). 2. When you place your pointer on a scatter plot, it shows you only the closest known (assigned) value from your dataset, it doesn't show you the actual value of the exact position you're in. Therefore, the end result would be closer to 38 ksi. Other than this, very good job in explaining the method. It helped me a lot! Thank you once again!
@birkwin22502 жыл бұрын
Hi, Australian biomed student here! This helped out a whole great deal in furthering my understanding of Excels tools, and with me finishing my assignment on time. It may be 1am right now but I just wanted to give thanks, have a great one 👍
@amanprakash87502 жыл бұрын
How did you know that the ellipse is tilted 45 degree with + x axes
@dashinglover96292 жыл бұрын
From the eq
@noahgarcia7312 жыл бұрын
Very informative and easy to understand video! Thanks so much, now I can get back to my lab!
@HydrographicSurveyor2 жыл бұрын
Thank you
@Stans_well2 жыл бұрын
Although I recommend watching the whole video, for those just figuring out what to input for the .2% offset skip to 8:30
@silviam.92232 жыл бұрын
Thank you so much sir Kuchnicki for this video; was very helpful in completing my tensions exercise. Greetings from Italy from a geology student.
@rayhanizzat23112 жыл бұрын
Thank you Mr. Stephen, very helpful 👍
@abhilashb25233 жыл бұрын
Hi sir, this is awesome without use of matlab, can you pls share the excel sheet to download ???
@chadxgaming21523 жыл бұрын
Ty sir
@orangejuiceearrape3 жыл бұрын
Thank you for posting this. You explained extremely well what my textbook and professor did not explain at all.
@CarlosRodriguez-xk9ot3 жыл бұрын
it's very good, Excel is very practical.
@sumayyahabdulla2883 жыл бұрын
You're a lifesaver, Sir. Thank you :)
@nurikapcoglu98843 жыл бұрын
ı dont know who you are but i know that i love you.
@brianjackson80563 жыл бұрын
Can this be used for a torque vs angle of twist graph?
@arifazmi55483 жыл бұрын
Thank you good sir! Very helpful to understand.
@lukeschmidtler88553 жыл бұрын
You are a very good speaker and did an amazing job explaining this, thank you!
@DOCTORALX3 жыл бұрын
@stephen Kuchnicki Thanks for posting this video Stephen. Towards the end you say that the 0.2% proof stress is around 42ksi. However it looks the intersection point would be around 38ksi? Can you please take a look and confirm?
@ethansobkowich81853 жыл бұрын
Thank you so much sir you helped me with my lab so much
@Jabonte3 жыл бұрын
This video is awesome. Thanks so much for the help!
@SA-xg2id3 жыл бұрын
I wanted to do this myself so i searched how to make a circle in excel, then this pops up. Amazing video. Thank you so much
@omowonuolaolufowobi97333 жыл бұрын
Please, how did you determine the elastic part of the graph with the cardboard palate?
@2011Shortstuff3 жыл бұрын
if only there was a download link for this sheet
@alrefaie43 жыл бұрын
I can't add a data for the series 1 (9.50min) I can't find any simple named as (Add) ?
@paytonbryce41013 жыл бұрын
Thank you! How do I get the intersection between the two lines?
@kilroy33633 жыл бұрын
Fantastic tutorial. You saved me so much stress and time on my report
@omaralessa85983 жыл бұрын
you are a legend and a fantastic instructor. Thank you for this tutorial
Пікірлер
Can this method be applied to crude oils?
Couldn’t find this answer anywhere else. You just saved my chem lab report.
Great video! Thank you very much
What would give you the value of N?
If I'm tracking your question correctly, the value of N would be whatever normal force you find from the loading. That's always the key here - before we can do anything with stress, we need to know the loads. In two dimensions, we're interested in the normal force perpendicular to the plane (N), the shear force parallel to the plane (V), and the bending moment that is trying to curve our structure (M). For example, if you think of a truss, the value of N would be whatever force you find inside the member of the truss. By definition, a truss has no shear and no moment.
3 years later, still useful. Thank you.
the ads are really excessive
great video there is also just a formula to bang out a angle so you don't have to measure it this is in python but you could use it in excel <========= is the part that calcs angle ClrHome Input "σxx: ",A Input "τxy: ",B Input "σyy: ",C (A+C)/2→D √((A-D)^2+B^2)→R (tan((2*B)/(A-C))/2→G <========= D+R→E D-R→F Disp "" Disp "ε0: ",D Disp "R stress Max: ",R Disp "Angle θ: ",G Pause Disp "Princaple εmax: ",E Disp "Princaple εmin: ",F Pause
why is my 0.2% above the stress strain graph? someone respond because its time sensitive (:
how can I also have the angle of rotation drawn? Do you have a code for me?
great video saved my lab report thanks a million
Absolute baller video real alpha male shit, thanks G
thank you sir
Thank you! this helped a lot
I don't get it, how can we say it's an ellipse in the first place? It's xy in (x/a)² +( xy/ab) + (y/b)² = c² that I can't understand.. shouldn't it be just (x/a)² + (y/b)² = c² to be an ellipse?
Sy = 42 ksi? I think you really meant the intersection looks more like about 38 ksi.
Thank you!
Thank You!!! You saved me so much time in my life (:
Reading wrong stress value of yield, while seeing the graph that obviously contradicts.
Thank you Sir for a really good explanation. Is there any possibility to explain kinematic hardening using Von Mises with the plot in excel?
This is so cool! would you mind sharing the excel?
Thank you this saved me
Thank you Stephen!
Thank you! god's work right here
Hello, thank you very much for this video! It's very helpful. I just have two remarks: 1. In the equation for the 0.2% offset strain, I believe the 0.2% alone is not right. As it is a relative value (0.2% of what?), it must be multiplied by the total plastic strain. Therefore, the equation should be =CV+0.002*MAX(Strain column). 2. When you place your pointer on a scatter plot, it shows you only the closest known (assigned) value from your dataset, it doesn't show you the actual value of the exact position you're in. Therefore, the end result would be closer to 38 ksi. Other than this, very good job in explaining the method. It helped me a lot! Thank you once again!
Hi, Australian biomed student here! This helped out a whole great deal in furthering my understanding of Excels tools, and with me finishing my assignment on time. It may be 1am right now but I just wanted to give thanks, have a great one 👍
How did you know that the ellipse is tilted 45 degree with + x axes
From the eq
Very informative and easy to understand video! Thanks so much, now I can get back to my lab!
Thank you
Although I recommend watching the whole video, for those just figuring out what to input for the .2% offset skip to 8:30
Thank you so much sir Kuchnicki for this video; was very helpful in completing my tensions exercise. Greetings from Italy from a geology student.
Thank you Mr. Stephen, very helpful 👍
Hi sir, this is awesome without use of matlab, can you pls share the excel sheet to download ???
Ty sir
Thank you for posting this. You explained extremely well what my textbook and professor did not explain at all.
it's very good, Excel is very practical.
You're a lifesaver, Sir. Thank you :)
ı dont know who you are but i know that i love you.
Can this be used for a torque vs angle of twist graph?
Thank you good sir! Very helpful to understand.
You are a very good speaker and did an amazing job explaining this, thank you!
@stephen Kuchnicki Thanks for posting this video Stephen. Towards the end you say that the 0.2% proof stress is around 42ksi. However it looks the intersection point would be around 38ksi? Can you please take a look and confirm?
Thank you so much sir you helped me with my lab so much
This video is awesome. Thanks so much for the help!
I wanted to do this myself so i searched how to make a circle in excel, then this pops up. Amazing video. Thank you so much
Please, how did you determine the elastic part of the graph with the cardboard palate?
if only there was a download link for this sheet
I can't add a data for the series 1 (9.50min) I can't find any simple named as (Add) ?
Thank you! How do I get the intersection between the two lines?
Fantastic tutorial. You saved me so much stress and time on my report
you are a legend and a fantastic instructor. Thank you for this tutorial