Question

A steel pipe with an inside diameter of 10 in. will be used to transmit steam under a pressure of 800 psi. If the hoop stress in the pipe must be limited to 10 ksi because of a longitudinal weld in the pipe, determine the minimum satisfactory thickness for the pipe.

Answer 1

The minimum satisfactory thickness for the pipe is 0.4. in

Step-by-step explanation:

The computation of the minimum satisfactory thickness for the pipe is shown below:

As we know that

`\sigma _h = (pr)/(t)`

Now for determining the thickness we have to rearrange it

`t = (pr)/(\sigma_h)`

where,

p = pressure inside the pips

r = pipe radius

`\sigma _h` = stress of the hoop

Now put the given values to the above equation

So,

`t = (800 * 5)/(10 * (10)^3)`

= 0.4 in

Hence, the minimum satisfactory thickness for the pipe is 0.4. in

The same is to be considered