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guesses3

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- TL;DR Summary
- A quick query about if I wanted to construct a vacuum tank made out of, say, aluminium or carbon fibre.

Hi,

I'm hoping this will be a fairly easy question for someone on here to answer. If I wanted to make a (small?) vacuum tank (basically a hollow cylinder capped with two similarly hollow hemispheres - like so: (===)), how thick would the walls of the tank need to be for it to withstand the internal pressure going quite low (eg. 1 Torr or 1 mBar) at sea level? I would be looking to make it out of a strong but light material like aluminium or carbon fibre. I just need an estimate - I simply have no idea (1mm, 2mm, 5mm, 20mm?)

If there were some fairly simple equation (for estimating the approximate thickness based on the internal pressure of the tank) for each material, that would be really useful

Cheers.

I'm hoping this will be a fairly easy question for someone on here to answer. If I wanted to make a (small?) vacuum tank (basically a hollow cylinder capped with two similarly hollow hemispheres - like so: (===)), how thick would the walls of the tank need to be for it to withstand the internal pressure going quite low (eg. 1 Torr or 1 mBar) at sea level? I would be looking to make it out of a strong but light material like aluminium or carbon fibre. I just need an estimate - I simply have no idea (1mm, 2mm, 5mm, 20mm?)

If there were some fairly simple equation (for estimating the approximate thickness based on the internal pressure of the tank) for each material, that would be really useful

Cheers.