Fig. 12. (a) Inclusion pressure p_i and (b) aspect ratio within linear elastic material under isotropic (₁₁ = ₂₂ = 0 to 100 kPa) and anisotropic (₁₁ = 100 kPa, ₂₂ = 0...100 kPa) remote stress with fluid compressibility = 5 x 10^–7 kPa^–1 (water), soil bulk modulus K = 10⁴ kPa and Poisson's ratio = 0.3 for different membrane stiffness (K_Me, = 0.49).