@Article{ BurRoy7, author = { Buratti, Giovanni and Royer Carfagni, Gianni }, title = { Plastic hinges as phase transitions in strain softening beams }, journal = { Journal of Mechanics of Materials and Structures }, year = { 2007 }, volume = { 2 }, number = { 9 }, pages = { 1677-1699 }, URL = { http://cvgmt.sns.it/paper/3024/ }, note = { cvgmt preprint} }