Stress intensity at tip of mode I fracture
Input(s)
\(\mathrm{P}_{\mathrm{f}}\): Fracture Pressure \((\mathrm{psi})\)
\(\mathrm{S}_{\mathrm{c}}\): Minimum Principle Stress \((\mathrm{psi})\)
L: Length of Fracture (ft)
Output(s)
K: Stress Intensity (psi ft)
Formula(s)
\[
\mathrm{K}=\left(\mathrm{P}_{\mathrm{f}}-\mathrm{S}_{\mathrm{c}}\right) * \pi *\left(\mathrm{~L}^{0.5}\right)
\]
Reference(s)
Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 122.