How tough are your steel sheets?
Are you interested in pushing forward the optimization of advanced high-strength steels (AHSS)? Do you want to improve the optimization of material selection for sheet metal forming to prevent production losses? Do you want to accurately predict the performance of steel parts and thereby prevent production losses or shorten the part design phase? Do you want to assess the crashworthiness of AHSS structural components? Then, having access to reliable fracture toughness and essential work of fracture data and methodology is a necessity.
Conventional methods used to predict the formability of steel sheets have shown their limitations when dealing with AHSS. Fracture and ductility criteria obtained through tensile tests, ductility assessment and forming limit diagrams are not sufficient to ensure the absence of edge crack formation during the manufacturing of AHSS. Meanwhile, fracture toughness has proved to be the relevant material property to predict the ability of AHSS forming as well as to rank the various AHSS sheets regarding fracture and crash performance.