Modeling of Ductile Fracture for SS275 Structural Steel Sheets

A series of earthquake events give impetus to research on the ductile fracture behavior steel materials. In last decades, many models have been developed and utilized in mechanical or aerospace engineering. Nevertheless, very little application structural members used construction industry has made due lack a suitable model for constructional steel. This paper presents experimental finite element (FE) technique predict mild carbon (SS275) sheets, which widely building structures. The post-necking true stress–strain responses were successfully estimated using weighted-average method. Bao Wierzbicki (BW) model, requires only two parameters, was selected identification locus. Each parameter calibrated from uniaxial tension in-plane shear specimens with aid digital image correlation (DIC) analysis. Fracture simulation then performed validated based results under combined stress state.