%0 Journal Article %A M√ľnch, Arnaud %A Pedregal, Pablo %T Relaxation of an optimal design problem in fracture mechanic : the anti-plane case %J ESAIM: Control, Optimisation and Calculus of Variations %D 2010 %P 719-743 %V 16 %N 3 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv/2009019/ %R 10.1051/cocv/2009019 %G en %F COCV_2010__16_3_719_0