hello sir, my name is abdul haris, i came from indonesia, i wanna ask you about pipe stress analysis, from what i know stress in pipe and in cylinders almost same, my final task is about pipe stress analysis in pipe bend using Ansys and then validating with analytical calculation and the output is von mises stress, to know von mises i have to search principal stress in 3 axis, i used hoop and radial stress in your explanation, but the axial stress i use longitudinal stress which is sum of axial stress, internal pressure and moment bending, can you explain to me how to calculate moment bending in pipe bend please ? thank you sir
Hi there, do you have any videos explaining lames equations and how to draw graphs representing internal, external, combine and intermediate pressures?
For calculating thickness of pipe, i needed value of Circumferential Stress of ASTM a106 gr b, Can anyone help me out with the value? I could not find it on google
How about a swimming pool. I am trying to build a pool wall with cinder blocks 24ft diameter. I want to use a band around each row, there will be 7, and need to know what the tensile strength of the band needs to be.
considering Lame's equation I am little bit confused about the tangential (Hoop) stress distribution and radial stress distribution.sign convention in book is different for hoop and radial. whether to take p0-pi or pi-po.
i have a question, longitudinal stress try to increase the length of the vessel and radial stress try to increase the diameter of the vessel .what about hoop stress ? what hoop stress will do?
really, i think they are just upto the mark . Apart from this he delivered the lecture very well . HATS OFF for his services ,continued from 2009- 2020 🤗
tarun nallur are you sure about it? I could not go through the derivation that was given in the book they seemed to have different expression that was way too long. I learned the concept from this video only. So if you are sure about what you said please let know
I was struggling to remember Hoop, so the girlfriend said to me "Just remember, Pat Remembers Pissing Rapidly Round Rodgers (Private Party) Run Rodger, Run Run Run!
![เปิดใจ "อาจารย์เบียร์ คนตื่นธรรม" อดีตเคยสุดทุกทาง ถ้าใช้หนี้หมดไปบวชแน่ l [Nickynachat]](http://i.ytimg.com/vi/IxeE0xVhy08/mqdefault.jpg)
"We live in 3 dimensional space, or at least I do" Said the man in the 2D video with no proof >.> suspicious
don't be suspicious, don't be suspicious XD
Thank you, Sir for first identifying your audience. Excellent tutorial!
I am from Bangladesh .
I won't make you too dishonoured by thanking you. You are helpful, sir.Salute......
Helpful. but we magically came up with the equation . I would like to see derivation of the formulas.
Where would the material strength factor come into play when calculating how thick a pressure vessel needs to be?
What were the pressures pi and po? Seems like you forgot to write those down
hello sir, my name is abdul haris, i came from indonesia, i wanna ask you about pipe stress analysis, from what i know stress in pipe and in cylinders almost same, my final task is about pipe stress analysis in pipe bend using Ansys and then validating with analytical calculation and the output is von mises stress, to know von mises i have to search principal stress in 3 axis, i used hoop and radial stress in your explanation, but the axial stress i use longitudinal stress which is sum of axial stress, internal pressure and moment bending, can you explain to me how to calculate moment bending in pipe bend please ? thank you sir
once you have the stresses, are these to be checked against the normal limit design stress of the material?
Hi there, do you have any videos explaining lames equations and how to draw graphs representing internal, external, combine and intermediate pressures?
Thanks to clear. Respect from India
For calculating thickness of pipe, i needed value of Circumferential Stress of ASTM a106 gr b,
Can anyone help me out with the value? I could not find it on google
i need to know about the thickness of boiler plate. can you explain about it?
What if there is a change of temperature inside the vessels?
Pi = ?
or should we "reverse-engineer" it?
How about a swimming pool. I am trying to build a pool wall with cinder blocks 24ft diameter. I want to use a band around each row, there will be 7, and need to know what the tensile strength of the band needs to be.
thank you very much,I want to know how to calculate the diameter of a thick tube after pressurization,can you give me some guidance.
thanks for the explanation. I'm hopelessly trying to understand why radial stress is negative. I can't seem to find an answer.
+Abdullah Hussain Cuz its compressive !!
great explanation. thumbs up
what is the axial stress for a thin walled pressure vessel? P * Ri / 2t?
Thanks :)
considering Lame's equation I am little bit confused about the tangential (Hoop) stress distribution and radial stress distribution.sign convention in book is different for hoop and radial. whether to take p0-pi or pi-po.
i have a question,
longitudinal stress try to increase the length of the vessel and
radial stress try to increase the diameter of the vessel .what about hoop stress ? what hoop stress will do?
Hoop stress prevent the vessel from explosion. Google state of stress and you will find a proper answer.
His circles are so neat it scares me
really, i think they are just upto the mark . Apart from this he delivered the lecture very well .
HATS OFF for his services ,continued from 2009- 2020 🤗
you didnt write the Pi and Po. How did you solve the question?
pi= -(sigma r)
If I am not mistaken, your formulas for hoop stress and radial stress are wrong. The +- sign in the middle is meant to be the opposite for both.
tarun nallur are you sure about it? I could not go through the derivation that was given in the book they seemed to have different expression that was way too long. I learned the concept from this video only. So if you are sure about what you said please let know
It is right
How is the mean diameter larger that the diameter? Shouldn't is be (100mm+150mm) / 2.......
Dm = 125mm?
he wrote radius, then worked out the diameter. so the mean diameter would be ((2x100)+(2x150))/2
sir,
For a thin wall vessel; D/t>=20 or r/t >=20 ?
I am confused as in some papers it is the ratio of radius to that of thickness.
Unfortunately, there is no standard definition. It may be a function of the application.
r/t>=10
I hope he explain how the equations comes out.
thank you
this is perfect and simple
can you explain more about radial stress please
I was struggling to remember Hoop, so the girlfriend said to me "Just remember,
Pat Remembers Pissing Rapidly Round Rodgers (Private Party)
Run Rodger, Run Run Run!
I don't get it.
Oh well. Better go study then.
John Keegan i dont get it , can u explain it :D
I came here for derivation but anyways thanks it helped me a liitle.
Geky Fela did you find the derivation? I am really not being able to imagine the direction of these stresses.
@@thinkingtank1027 same here....what causes radial n hoop stress in thick cylinders?
thx professor
very helpful..!
Hey man, thx a lot.
Perfect!! :)
THANK YOU SIR
So much's for everything
THANK YOU!!!
come to india we will teach mechanics
come to usa we will go to space
قد افلح من صلى على محمد
whitout sound !!!
I think im an idiot
shite