Mechanical Design, Manufacturing and Engineering Forum
[ Home ] [ Search ] [ Engineering and Design Database ] [ Resume/Job Database ] [ Product and Services Directory ]
Engineering, Design and Drafting Store ] [ Engineering Forum ] [ DFM DFA Training and Trainers ] [ GD&T Training GD&T Trainers ] [ Advertise ]
[ POSTING POLICY / RULES ][ Archive#1 ] [ Archive #2 ] [ Archive #3] [ Calculators ] [ Tell A Friend ]
Forum Moderators: randykimball, Administrator

PVC pipe under external pressure
Post Reply   Forum
Posted by: devitg

04/28/2005, 20:06:13

Author Profile Mail author Edit
Hi all , I need to make a vessel to be under external pressure or with vacuum inside.
The vacuum will be no more than -500 mBar relative, or about 15 inch HG.
This vessel will be made from, a standard PVC pipe 508 mm 9.5 mm thick or [20" ] Schedule 20.

Please I need to know if it will resiste such pressure.

Or give me the formula that handle such topic.
thanks in advance

Post Reply | Recommend | Alert View All   | |

Replies to this message

Re: PVC pipe under external pressure
Re: PVC pipe under external pressure -- devitg Post Reply Top of thread Forum
Posted by: zekeman

04/29/2005, 10:32:48

Author Profile Mail author Edit

For a long cylinder or sphere, the wall stress is
p= compresive stress in wall
P=diff between external and internal pressures
t=wall thickness
D=dia of vessel
Make sure your dimensions are consistent and look out for the end cap stresses for cylinder.

Post Reply | Recommend | Alert Where am I? Original Top of thread

Powered by Engineers Edge

© Copyright 2000 - 2019, by Engineers Edge, LLC All rights reserved.  Disclaimer