jrjones
Mechanical
- Oct 10, 2006
- 38
Just wondering if anyone out there knows where the equation for the triaxial strain limit in the new S8D2 5.3.3 comes from? It is also in the new API 579. Specifically I am looking for a derivation of the equation so as to determine how the m_2 and alpha_sl coefficients come from.
el=elu x exp(-(alpha_sl/(1+m_2))(TF-1/3))
where TF is the triaxiality factor...
TF=(S1+S2+S3)/(3Se)
Thanks in advance.
el=elu x exp(-(alpha_sl/(1+m_2))(TF-1/3))
where TF is the triaxiality factor...
TF=(S1+S2+S3)/(3Se)
Thanks in advance.