How can I calculate stress of thin film on sphere?

29 December 2021 1 3K Report

I want to calculate the pressure applied to a balloon when it is inflated by air.

Is it possible using stoney equation as set the thickness of substrate as radius of a balloon?

Or is there other way to calculate it?

use PV=mRT to calculte P, using Z=1, weigh the ballon . moles is function( MW, weight), measure R, anf then get P. or use a pressure gage.

use simplified LAME formula S=P*R/t where t is the thickness of balloon at inflated pressure P .

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