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glass dome on pressure vessel

glass dome on pressure vessel

glass dome on pressure vessel

(OP)
I am designing a sub-sea HMI light housing.  I want to use a glass dome (borosilicate?) mounted on an aluminum housing.

Does anyone know if glass responds to stress linearly? I know that acrylic does not respond linearly when used for a pressure housing, which is why i ask.

for general info: the dome will be about 5" diameter, see up to 350 deg F on the inside surface, 90 deg F outside, and up to 2000 psi (external).  at 2000 psi, the temps will be much lower.

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