[permaculture] Ferrocement water tank pix

David david at h4c.org
Mon Dec 17 20:59:52 EST 2007


Charles,

Charles de Matas wrote:
> For cylindrical tanks, I think only the hoop stress needs to be considered.[...]The hoop stess will be proportional to the depth of water and the diameter of the tank.  

Diameter is not a consideration with regard to hydrostatic pressure, 
only depth.

d.

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David William House
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