Fig. 9. (a) Pressure p_i and (b) aspect ratio of an initially circular inclusion within linear elastic material of Poisson's ratio under anisotropic remote stress |₁₁| |₂₂| (with (₁₁ + ₂₂)/2 = 100 kPa) with fluid compressibility = 10^–5 kPa^–1 and matrix bulk modulus K = 10³ kPa.