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Topic Closedpipe bend surface area calculation in autocad
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spanatko View Drop Down
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Joined: 24.Feb.2011
Location: Slovakia
Using: AutoCad2009
Status: Offline
Points: 2 		Direct Link To This Post Topic: pipe bend surface area calculation in autocad
    Posted: 25.Feb.2011 at 00:07
Hello,

I need a hint on calculating the surface area of a pipe bend /to be more precise of the bends individual sections/, is this possible to do in autocad with 3d? is there such a library of functions? any suggestions or information appreciated. 

Big thanks 
Mike
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CarlB View Drop Down
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Joined: 16.Oct.2009
Location: United States
Status: Offline
Points: 321 		Direct Link To This Post Posted: 25.Feb.2011 at 01:14
Assuming consistent circular cross-section, the surface area is the pipe circumference times the centerline length.
 
If bent on curve of radius R, the centerline length is R x Bend angle (in radians).
 
A pipe of outer radius r, at a 45 degree bend would have length  R x 45 x (Pi/180), and a surface area of (2Pi x r)x (R x Pi/4)
 
That geometric method seems easier than a cad solution.
 
 
 
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spanatko View Drop Down
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Joined: 24.Feb.2011
Location: Slovakia
Using: AutoCad2009
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Points: 2 		Direct Link To This Post Posted: 25.Feb.2011 at 08:49
Hello, 


thank you very much for your input and explanation, a cad solution will be required here as the sections of the bend will have to be manufactured based on some graphic presentation. I assume it will be in 3d, but what I do not know is the module that I need to buy to be able to calculate /and depict/ the surface areas  and shapes for the individual sections in the pipe bend. 

So far I have found 2 candidates /AutoCad plant 3D and Autocad P&ID/ but I might be very wrong here, and maybe some other version might be totally suitable for these calculations and imagery. Thank you for the geometric method description as well, I am looking at it right now and it helps.


Thank you & Regards
Michael
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John Connor View Drop Down
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Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175 		Direct Link To This Post Posted: 25.Feb.2011 at 11:46
I think AutoDesk Inventor might be a better choice.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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