Linearized Mohr failure line
Input(s)
\(S_{o}\): Stress (psi)
\(\sigma_{n}\): Normal Stress (psi)
\(\mu_{i}\): Coefficient of internal Friction \((\mathrm{cP})\)
Output(s)
\(\tau\): Shear Stress (psi)
Formula(s)
\[
\tau=\mathrm{S}_{\mathrm{o}}+\sigma_{\mathrm{n}} * \mu_{\mathrm{i}}
\]
Reference(s)
Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 89.