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Table 3 Sensitivity analysis on friction angle

From: An approach to hydraulic fracture in geomaterials through a porous brittle damage material model

\(\varvec{\varphi }\) (\(^{\varvec{\circ }}\))

S\(_\mathbf{f,1 }\) ( m\(^{\varvec{2}}\))

V\(_\mathbf{f,1 }\) ( mm\(^{\varvec{3}}\))

30

0.0915

\(2.32^{-4}\)

38

0.0100

\(1.51^{-4}\)

45

0.0117

\(1.92^{-2}\)

  1. \(S_{f,1}\): fracture surface at first fault formation. \(V_{f,1}\): fracture volume at first fault formation