T. Elguedj, A. Gravouil, and A. Combescure, Appropriate extended functions for X-FEM simulation of plastic fracture mechanics, Comput. Methods Appl. Mech. Engrg, pp.501-515, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00373830

A. L. Gurson, Continuum theory of ductile rupture by void nucleation and growth : Part I-Yield criteria and flow rules for porous ductile media, J. Eng. Mat. Tech, pp.2-15, 1977.

D. Haboussa, D. Grégoire, T. Elguedj, H. Maigre, and A. Combescure, X-FEM analysis of the effects of holes or other cracks on dynamic crack propagations, Int. J. Num. Methods Eng, pp.618-636, 2011.
URL : https://hal.archives-ouvertes.fr/hal-00581554

M. Kanninen and C. H. Popelar, Advanced Fracture Mechanics, 1985.

P. Longère, A. G. Geffroy, B. Leblé, and A. Dragon, Modelling the Transition between Dense Metal and Damaged (Micro-Porous) Metal Viscoplasticity, Int. J. Damage Mech, pp.1020-1063, 2012.

N. Moës, J. Dolbow, and T. Belytschko, A finite element method for crack growth without remeshing, Int. J. Num. Methods Eng, pp.131-150, 1999.

V. Tvergaard and A. Needleman, Analysis of the cup-cone fracture in a round tensile bar, Acta Metall, pp.157-169, 1984.

G. Zi and T. Belytschko, New crack-tip elements for XFEM and applications to cohesive cracks, Int. J. Num. Methods Eng, 2003.