Maximum anisotropic failure stress

Input(s)

$\sigma_{c}$: Minimum Principle Stress (psi)

$S_{w}$: Intact Rock Strength (psi)

$\mu$: Internal Friction of Weak Bedding $(\mathrm{cP})$

ß: Angle of Weak Plane to Maximum Principle Stress (degrees)

Output(s)

$\sigma$: Stress $(\mathrm{cm} / \mathrm{s})$

Formula(s)

Reference(s)

Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 107.