Linearized Mohr coulomb criteria

Input(s)

CoC_{o}: Unconfined Compressive Strength of Rock (psi)

μ\mu: Slope of Failure Line (dimensionless)

σc\sigma_{c}: Minimum Effective Principal Stress (psi)

Output(s)

σ1\sigma_{1}: Maximum Effective Principal Stress (psi)

Formula(s)

σ1=(Co)+((μ2+1)0.5+μ)2σc\sigma 1=\left(C_{o}\right)+\left(\left(\mu^{2}+1\right)^{0.5}+\mu\right)^{2} * \sigma_{c}

Reference(s)

Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 93.


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