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

  • Thread starter MarkH748
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MarkH748
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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
 

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