Engineering Materials - Ramberg Osgood Parameters Help

[junglep]

I am currently doing a material characterisation project and have performed a standard tensile test on a number of 304 stainless steel specimens.

I have obtained a number of stress-strain curves from the testing and have been told I need to relate them to the Ramberg-Osgood material model in order to determine the parameters of the R-O equation. I really have no idea how to do this that doesn't involve guess and check. Does anyone have any experience in this field, any help would be great!

 

[Astronuc]

These might be useful

Using the Ramberg-Osgood equation, stress-strain plots ...
http://www.ewp.rpi.edu/hartford/~balamk/MEF2/homework/HW3/HW3-Solution.pdf

Computational Procedures for Determining Parameters in Ramberg-Osgood . . .
http://www.osti.gov/bridge/servlets/purl/6496483-pbYjt9/native/6496483.pdf