How much pressure can a capsule 3 ft. high with diameter of 1 foot withstand with only 1 layer of fiberglass?

Question

WIth a container with a diameter of 1 ft. and a height of 3ft covered with one thin layer of fiberglass, how much psi pressure can it withstand before it bursts?

Answer 1

depends on the strength of the resin used on the fiberglass.

once you know the strength you can use simple pressure vessel equations.  For example ASME section 8 gives you the code allowed equations and stress levels.

If the ends are flat then that will be your weak point.