Wow! I've been working at this wheel company for x number of years and we've never done a correlation yet; although, we correlated our stress values and distribution vs. actual performance test by just comparing FEA results to pass no-pass performance lab reports. I’m sure we will pull out the strain gage someday and conduct a real correlation, but for now this is working for this people.
Greg – What solver you’re using for your non-linear simulation?
Thanks!