%0 conference paper,conference lecture %@ %A Hao, S.,Brocks, W.,Heerens, J.,Hellmann, D. %D 1996 %J ECF 11: Mechanisms and Mechanics of Damage and Failure; Proceedings of the 11th Biennial European Conference on Fracture Mechanics %N %P 929-934 %T Simulation of 3D ductile crack growth by the Gurson-Tvergaard-Needleman model %U %X