Microfracture by pile-up formation at a stress corrosion crack tip : Numerical simulations of hydrogen/dislocation interactions D. Delafosse, J. P. Chateau et T. MagninJ. Phys. IV France, 09 PR9 (1999) Pr9-251-Pr9-260DOI: https://doi.org/10.1051/jp4:1999925