Answer:
The minimum required thickness for a steel pressure vessel (t) is 2.275 mm
Step-by-step explanation:
Minimum required thickness is the thickness of a material without corrosion allowance for each component based on the appropriate design that consider pressure, mechanical and structural loading.
Given that:
radius (r) = 65 mm = 65 × 10⁻³ m
Factor of safety (N) = 3.5
Inside presssure (
) = 11 MPa
Outside pressure (
) = 1 MPa
Yield strength (
) = 1000 MPa
Therefore:
, Substituting values,

The minimum required thickness for a steel pressure vessel (t) is given by the equation:
. Substituting values

The minimum required thickness for a steel pressure vessel (t) is 2.275 mm