Anisotropic Phase-Field Fracture Modeling under Compression in Geomaterials
An extension of phase-field fracture modeling to strongly anisotropic rock that fractures under compressive, confined loading. Students learn how a homogenized anisotropic elastic response, an effective damage law that transmits compressive traction across the crack face, and a regularized crack-normal field together let a diffuse damage field reproduce realistic crack paths in layered shales, and how treating a pre-existing crack as a non-singular damaged zone enables general wing-crack simulations without meshing the crack as a boundary.
To appear in International Journal for Numerical and Analytical Methods in Geomechanics
Primary research (cond-mat.mtrl-sci, math.AP; Int. J. Numer. Anal. Methods Geomech.). Extends phase-field fracture modeling to strongly anisotropic geomaterials (e.g. layered shales, transversely iso…