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Radial pressrue given lateral strain

  1. Aug 4, 2011 #1
    Imagine you have a cylindrical plug of plastic that you press fit into a hole. I need to determine the raidal pressure, radial stress, that the plug exerts on the wall of the cylinder.

    Here is what I have so far.

    Lateral Strain = (d_initial - d_final) / d_initial\

    From what I understand the Young's modulus deals with axial stress and axial strain. I can use Possion's ratio to determine the axial strain given my lateral strain but I'm not sure how to go from this to radial stress.

    Basically if I have a rod that changes diameters by x ammount, what radial pressure is required to do this.

    Thanks for the help!
  2. jcsd
  3. Aug 5, 2011 #2
    Can Somebody offer some help.
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