Bridging between heterogeneous local strain distribution and macroscopic stress-strain curves

A modified continuum composite model was utilized to analyze the stress–strain behavior of as-quenched steels with a fully martensitic microstructure. The employed express curves obtained by simple tensile test and those forward backward loading using shear machine. study confirmed that can represent under both deformation. In addition, evolution local strain distributions during plastic deformation investigated digital image correlation method. their were qualitatively represented this model. discrepancies between calculations experiments are due limitations iso-work assumption impact slip on macroscopic work-hardening steels. Highly strain-concentrated regions aligned along longitudinal direction lath block, known as in-lath-plane slips, may not play an important role in However, other namely out-of-lath slip, significant work hardening