M Modulus (using shear modulus and bulk modulus)
Input(s)
G: Shear Modulus \(\left(\mathrm{N} / \mathrm{m}^{2}\right)\)
K: Bulk Modulus \(\left(\mathrm{N} / \mathrm{m}^{2}\right)\)
Output(s)
M: M Modulus \(\left(\mathrm{N} / \mathrm{m}^{2}\right)\)
Formula(s)
\[
\mathrm{M}=\mathrm{K}+4 * \frac{\mathrm{G}}{3}
\]
Reference(s)
Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 64.