SOLUTION: The stress in the material of a pipe subject to internal pressure varies jointly with the internal pressure and internal diameter of the pipe and inversely with the thickness of th

Question 417475: The stress in the material of a pipe subject to internal pressure varies jointly with the internal pressure and internal diameter of the pipe and inversely with the thickness of the pipe. The stress is 100 pounds per square inch when the diameter is 5 inches, the thickness is 0.75 inch, and the internal pressure is 25 pounds per square inch. Find the stress when the internal pressure is 40 pounds per square inch if the diameter is 8 inches and the thickness 0.5 inch.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I use what is called a "constant of proportionality" to solve these
Let = constant of proportionality
given:
------

So, just plug this value in with new values

The new stress is 384 pounds/in2
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