Description: Consider a pressure vessel that is made of two half spherical domes with 1 ft in diameter, and the cylinder portion is 3 ft in length and is subjected to 100 psi pressure. The maximum tensile strength of the material is 55 ksi The factor of safety for this design is 1.5. Problem: Determine the minimum thickness for this design.

0.016 in

Explanation:

1 ft = 12 in. So the radius r = 6 in

3 ft = 36 in

55 ksi = 1000 psi

The longitudinal stress of the vessel can be calculated as the following:

where p = 100 psi is the internal pressure, t is the wall thickness

The hoop stress can be calculated as the following

As 0.011 > 0.0054 we will pick t  = 0.011 as design to withstand the maximum stress. Taking into account of factor of safety design, the appropriate thickness is 0.011*1.5 = 0.016 in

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electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

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