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: Calculate stress, strain & YME

  1. Feb 11, 2007 #1
    Appreciate if someone can take the time to check my answers to the following question. If wrong, could you point me in the right direction.

    A round bar, 800 mm long, CSA 15 mm^2 experiences an applied tensile load of 6 kN and stretches elastically by 3 mm.


    a) Calculate the tensile stress in the bar.
    My answer 400 MN/m^2

    b) Calculate the strain on the rod.
    My answer 0.00375 or 0.375%

    c) Calculate the Modulus of Elasticity of the material.
    My answer 106.67 GN/m^2
     
  2. jcsd
  3. Feb 11, 2007 #2

    radou

    User Avatar
    Homework Helper

    The answers look correct, except I set the units up different, but the numbers seem okay.
     
  4. Feb 11, 2007 #3
    Thnx for taking the time.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook