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Getting stress-strain data using the 'strain hardening exponent'.

  1. Jun 23, 2011 #1
    Hi guys,

    I am trying to generate tabular stress-strain data from the data given in this table for a grade of aluminium,

    35070c6.png

    The elastic region is simple but I don't understand how to use the 'strain hardening exponent' to generate stress-strain data for the plastic region. From what I understand it should follow this equation,

    σ = Kεn

    where n is the strain hardening exponent
    and K is the strength coefficient which is defined as " the extrapolated value of true stress at a true strain of 1.00."

    Should I not have been given this value of K in order to plot the data or is there another way to generate the data based on the information given in that table?

    Any help would be greatly appreciated!

    Mark
     
  2. jcsd
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