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S-shape stress parameters

Posted: Thu Feb 21, 2019 2:52 pm
by theodorb
Hi,

Can you tell were is the S-shape stress parameters (Multiplicative stress function) come from? they seem a little high and I would like to know what paper or database are they based upon?

Thanks,
Theodor Bugici

Re: S-shape stress parameters

Posted: Thu Feb 21, 2019 10:35 pm
by Jirka
The S-Shape parameters are calculated directly from the values provided for the Threshold & Slope function of Maas [1990]. J.