This is the first time I comment oN a youtube video. THANK YOU. YOU SAVED MY LIFE I HAVE BEEN STRUGGLING WITH SIMILAR PROBLEM FOR 8 HOURS. I LOVE YOU!!!!!!
Thank you for posting this. You explained the important little things that my professor skips because he assumes that we all get it. Now I get the little things, now I can solve these!
If I understand your question correctly, the convention that I am used to is to show the shear force acting down on the part of the beam to the left of B and up on the part of the beam to the right of B.
I was wondering if it's at all possible for you to do a video about non-uniform distributed loads on a beam with SF and BM diagrams. That would be super helpful. Thanks
So the moment is what direction the beam will rotate about a fixed point, in this case the wall is the fixed point for the first moment of force (torque) and then 100 lb force to the right is the other fixed point the object will rotate around. Because " v " force is less than 100 lbs, the beam will rotate around the wall or in this case the 100 lb load. Right? Moment defined by math is the cross product between two forces (vectors) and so a moment as shown in this is example is a vector itself, not a scalar.
I was confused with moment's for a while, khanacademy cleared that up. It's just a force acting parallel to an point. The way I understood was a diagram of a swing. If you push someone on it you're applying a moment around where the chain is secured
I don´t understand why V is positive 100lb instead of negative 100lbs. It would make more sense since in the FBD of the left part of the beam you need a downward force in order to balance the wall upward 100lbs.
This Pretty Useful, Thank you! But i have a question please, in some examples its asked to find out the shear force and Tension at a point"B", so according to what we consider Point B at the left or the right part of the beam ??
How can this force be applied on a basketball upright for the backboard support. These forces Is also teach in physical education sports engineering program.
@Darryl Morell. Hey Mr. Darryl. Do you know the meaning of shearing reversal. Its for my science project and I need to understand how non-newtonian fluid works. My literature said that shearing reversal plays a part in the particle movement inside non newtonian fluid. tnxxx
im late but you are fucked..its never better to study last minute i touched this chapter in the class this morning and im just finished watching this vid notice the difference? be prepared all the time :)
It would be helpful tp redo this without the mistakes and the reversing of signs! Wouldn't it be easier to express the final equation (following the logic used for the previous one) as M+V*2ft=0 therefore M=-200ftlbs?
+Loong Kam Yong Because he is taking the moments about a fix point. In the 8ft part, he is taking the moments about the far left point. On the second he is taking the moments about the left side which makes V go through the point making it a moment of zero.
from some questions that i've done, shear force direction will only affect the value either its +ve or -ve. but im in not condition to say that its the correct way of doing it.
taking moments about point A @ 10:20 round there, shouldnt that moment be 0? Because if your're takign moments about A distance is 0, so how can the moment be 1000 :(
taking a moment about a point means you multiply all perpendicular forces times their distances from the point. M=F*d since the force of 100 pounds is 10 feet away from point A (its moment arm)-- -100lbs (downward) * 10 feet (distance from point a) = -1000ft*lb. or 1000ft*lb clockwise.
Great video, I would say try to sound more charismatic and talk faster, the information is there but it does kind of send me to sleep. Maybe drink a few redbulls or several cups of coffee and then make the video, and if you talk faster then you can type speed the video up to match. Although to be fair this is an old video and I would say you have improved in your more recent ones.
Learn the fundamentals of mechanics, internal forces, shear and bending moment diagrams and more, then test your knowledge on 400+ quiz questions. See link below, www.udemy.com/become-a-mechanics-pro/?couponCode=UA-camSPECIAL
Hi everyone. i need english practice i need you help. so i know about strength of material. i can help you if someone wants it. i can calculation moment shear force axcial force manual.
your horizontal forces are NOT balanced. Look at your horizontal yellow and orange components !!! The way you also classify the loads are wrong. Your mental classification is incorrect. You should say axial force which is comprised of tension and compression.
This is the first time I comment oN a youtube video. THANK YOU. YOU SAVED MY LIFE I HAVE BEEN STRUGGLING WITH SIMILAR PROBLEM FOR 8 HOURS. I LOVE YOU!!!!!!
You basically summed up what my prof's been teaching me for the past 2 weeks in 7 minutes of your video. Thanks!
All the other videos are so complex on this subject, thank you for performing a more elementary video with clarity. 😀
special place in heaven reserved for people like yourself.
Thank you
Thankyou so much...I am studying for my finals right now which is in about 6 hours..it was hell of a useful video..:)
Come on America! Get with the SI system! ;)
Anthony Jackson
Jesus Christ! You know what I mean mate!? These archaic units need to go!!
They are too proud to that. They must be better then others (sarcastic)
This was my first thought and I came to the comments to see if anyone mentioned it aha
Yeah yeah but whats 12/2 12/3 12/4 12/6? Its not the easiest way and i design a lot in metric but imperial gets more criticism then it deserves
You are the Best. I am lucky to find Teacher like you. Thank You Sir.
Thank you for posting this. You explained the important little things that my professor skips because he assumes that we all get it. Now I get the little things, now I can solve these!
Thank you so much, cleared doubts that weren't cleared elsewhere.
Great help!
The act of engineering is my major dream needed to be accomplished in my life.
did you?
good video! except when i heard your phone ringing in the background i thought it was mine ringing downstairs. damn surround sound.
If I understand your question correctly, the convention that I am used to is to show the shear force acting down on the part of the beam to the left of B and up on the part of the beam to the right of B.
yea, finally a video which makes me understand that concept. ty
you are such a legend
Why couldn't I have had a teacher like you
you are genius thank you !!!!
I was wondering if it's at all possible for you to do a video about non-uniform distributed loads on a beam with SF and BM diagrams. That would be super helpful. Thanks
So the moment is what direction the beam will rotate about a fixed point, in this case the wall is the fixed point for the first moment of force (torque) and then 100 lb force to the right is the other fixed point the object will rotate around. Because " v " force is less than 100 lbs, the beam will rotate around the wall or in this case the 100 lb load. Right? Moment defined by math is the cross product between two forces (vectors) and so a moment as shown in this is example is a vector itself, not a scalar.
I was confused with moment's for a while, khanacademy cleared that up. It's just a force acting parallel to an point. The way I understood was a diagram of a swing. If you push someone on it you're applying a moment around where the chain is secured
Settings>Speed>1.5
you're welcome :P
thanks to upload this video. it really helps
I don´t understand why V is positive 100lb instead of negative 100lbs. It would make more sense since in the FBD of the left part of the beam you need a downward force in order to balance the wall upward 100lbs.
+Alvaro Zerkowski it is downward facing force. The eqaution is build with prediction of downward facing V
How do we know which point has the maximum of these internal forces acting on it if it’s a complex problem with 4 loads.
good one , bravo
Awesome video, thank you!!
Very well explained
Why gravity was not considered when forces at y axis calculated?
The transition of the point load to udl was very confusing ma=1000ftlbs?
This Pretty Useful, Thank you!
But i have a question please, in some examples its asked to find out the shear force and Tension at a point"B", so according to what we consider Point B at the left or the right part of the beam ??
great video!!!!! came here not knowing anything!!!!!!
Thank you
How can this force be applied on a basketball upright for the backboard support. These forces Is also teach in physical education sports engineering program.
would spreading a substance on another like spreading peanut butter on bread be a type of shear force, like a shear deformation?
Very sorry, Axial force, Shear force, bending moment and tortional moment are all not internal. All of them are external.
thank you!!
Thank you sooo much!! It helped much!!!
Thank You Very much Sir,Very Helpful
Very helpful, thank you very much
@Darryl Morell. Hey Mr. Darryl. Do you know the meaning of shearing reversal. Its for my science project and I need to understand how non-newtonian fluid works. My literature said that shearing reversal plays a part in the particle movement inside non newtonian fluid. tnxxx
oooh helpful ....but how could i draw the shear force then ??? daigram ): today is my exam
im late but you are fucked..its never better to study last minute i touched this chapter in the class this morning and im just finished watching this vid notice the difference? be prepared all the time :)
thx , great work
When you were computing moments about point A (the fixed point) as the reference, don't you ignore the moment A in the equation?
so the sum of the forces should be equal on the left and right side, right?
Great video thank you :)
It would be helpful tp redo this without the mistakes and the reversing of signs!
Wouldn't it be easier to express the final equation (following the logic used for the previous one) as M+V*2ft=0 therefore M=-200ftlbs?
+djadameve It just depends on which point you consider while doing the moments. I wouldn't say it's easier, it's just another way.
Very Clear Thnxs
thanks a lot !!
sorry i don't understand why the moment on the different direction are same negative 200ftib
when doing the sum of moments for the left sub structure, around 14:10, how come you equate moments at point A and at the cut line of a-a?
Compression isn't a form of tension, it's the opposite of tension.
thanks for this video :D
thanks
These units needs to be done way with please. It could be clearer
\
How do you calculate proportional limit
How to draw torsion force digram please share that as well
Why the 8 ft part you had 8xV but 2 ft part you didnt have 2xV?
+Loong Kam Yong Because he is taking the moments about a fix point. In the 8ft part, he is taking the moments about the far left point. On the second he is taking the moments about the left side which makes V go through the point making it a moment of zero.
how do you know which direction the shear force is acting in?
from some questions that i've done, shear force direction will only affect the value either its +ve or -ve. but im in not condition to say that its the correct way of doing it.
hi, I'm confuse about the FBD of moment how will i know if it's clockwise or counter clockwise please help.
What is that programm?
taking moments about point A @ 10:20 round there, shouldnt that moment be 0? Because if your're takign moments about A distance is 0, so how can the moment be 1000 :(
taking a moment about a point means you multiply all perpendicular forces times their distances from the point. M=F*d since the force of 100 pounds is 10 feet away from point A (its moment arm)-- -100lbs (downward) * 10 feet (distance from point a) = -1000ft*lb. or 1000ft*lb clockwise.
@ sir j, i think your observation is right, the distance there is 0.
you saved mt life. send me your Paypal email.
Good
yes it is useful video
quite useful ,,,thanku but looked like u rushed it at the end
Great video, I would say try to sound more charismatic and talk faster, the information is there but it does kind of send me to sleep.
Maybe drink a few redbulls or several cups of coffee and then make the video, and if you talk faster then you can type speed the video up to match.
Although to be fair this is an old video and I would say you have improved in your more recent ones.
+Crimson Strings you can always watch on 1.25x or 1.5x speed, I do this
+JK SGF
That's actually a really good idea. I think I'll start doing that.
Thanks, you solved a lot of my UA-cam related revising problems.
no problem :3
Crimson Strings
vu angiela
Hi. Please don't draw the external forces into the material.
does anyone know a good text book that includes all these topics?
+Fatima AT Mechanics of Materials by James M. Gere ?
+Fatima AT this book is useful( Hibbeler Structural Analysis 8th )
+Fatima AT Mechanics of Materials by R.C.Hibbeler.
Learn the fundamentals of mechanics, internal forces, shear and bending moment diagrams and more, then test your knowledge on 400+ quiz questions. See link below,
www.udemy.com/become-a-mechanics-pro/?couponCode=UA-camSPECIAL
love u
Hi everyone. i need english practice i need you help. so i know about strength of material. i can help you if someone wants it. i can calculation moment shear force axcial force manual.
hmm
not satisfactory
your horizontal forces are NOT balanced. Look at your horizontal yellow and orange
components !!!
The way you also classify the loads are wrong. Your mental classification is incorrect.
You should say axial force which is comprised of tension and compression.
Thank you
thank you very much!
Thank you