The growth of transcrystallites induced by fracture stress was studied in the solution casted polystyrene (PS)/poly(ethylene oxide) (PEO) blends films. Both the structure geometry of the crack edge and the effect of local fracture stress on the crystallization were considered. It was found that the local fracture stress contribution is the most important factor to the formation of transcrystallites. Transcrystallites were obtained when PEO crystallized before the local fracture stress was relaxed, while only regular spherulites were obtained when crystallization took place after the relaxation of the local fracture stress. (C) 2013 Elsevier Ltd. All rights reserved.