Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Pressure in Tube, Bulk Modulus

  1. Feb 21, 2012 #1
    A straight tube, 1m long, of radius 10mm and wall thickness, is closed at both ends. It is found that when the pressure inside is increased from 10^5 Pa to 10^6 Pa the tube lengthens by 100um. What is the bulk modulus of the material of the tube?

    Well know that P = -Bdv/V and also that for a thin tube of radius r and thickness t<<r under pressure P the hoop stress is rP/t and the stress in the axial direction is rp/2t

    I can work out the fractional change in volume etc but really stuck with the question! Please HELP!
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted