What is an Isotensoid?

[Klaus21]

Hello,

I need to design a cylindrical pressure vessel from carbon fiber. In the literatur everybody recommends to use an isotensoid form at the ends of the cylinder.
Can anybody tell me, what this is and where I can find a mathematical formula for this?

Thank you.

Klaus

 

[quark]

When I first came across this word, I did a little search and following are the clues found.

Definition: A filamentary structure in which there exists a constant stress in any given filament at all points in its path.

(This talks about constat tensile stress)

For description

http://www.adoptech.com/pressure-vessels/main.htm

An excel spreadsheet for Isotensoid design

http://www.process-research.com/DOME.xls

For some mathematical insights

file:///C:/Documents%20and%20Settings/Administrator/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/61KRGBOD/331,2,Filament Wound Composite Pressure Vessel - Geodesic Dome Design

You may get some help if you consult any FRP pressure vessel manufacturer.

Regards,