Simulation of cup cone fracture using the cohesive model

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An improved description of the exponential Xu and Needleman cohesive zone law for mixed-mode decohesion (2006, methodology): “A continuously differentiable description of this cohesive zone law is proposed by Scheider and Brocks [ 34 ] and is used to simulate cup-cone fracture.”
Damage accumulation and fracture initiation in uncracked ductile solids subject to triaxial loading (2007, background): “Experimental work shows that compressive pressure increases the ductility in many ductile and brittle materials, such as metals (Bridgman, 1952; Lewandowski and Lowhaphandu, 1998; Pugh et al., 1960; Spitzig, 1990) and rocks (von Karman, 1911; Mogi, 1972).”
Phase-field modeling of ductile fracture (2015, background): “Its extension to unknown crack paths entails the insertion of cohesive elements between each pair of continuum elements in an FE mesh, which may lead to strongmesh dependency and over-estimated cracked areas [27].”