1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Average true stress

  1. Dec 7, 2008 #1
    Im working on a problem that I need to find the Average true stress....Im using a true stress curve for annealed copper....and I found the true stress in the unstrained condition to be 12,000 psi.....and I found the true stress in the strained condition by using the equation:

    strain = ln(l/l_o) which gave me .916....I than used the strain of 916 on the x-axis to find the true stress in the strained condition.(72,000 psi).....Im trying to remember how to find the average of the two values since I cant just add and divide by two since the graph is not a straight line......
    Last edited: Dec 7, 2008
  2. jcsd
  3. Dec 8, 2008 #2
    How would I find the area under the curve when I only have two points?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?