Abstract The application of embossed structures close to the sheet surface allows for work hardening be introduced into metal materials, leading an improvement in their mechanical properties. So far, this was demonstrated previous research via tensile tests with differently dual-phase steel specimens. Since only reproduce uniaxial loading material, no conclusions can yet drawn about property mo...

The crushing of crash boxes is a complex phenomenon characterized by strong interaction structural and material properties. Many attempts to improve their energy absorption adopting one aspect resulted in unacceptable unprogressive bucking. Thus, special considerations are required for box optimization including both effects. In this study, the behavior analyzed new design approach introduced f...

Abstract In research and industry, the in-plane torsion test is applied to investigate material behaviour at large plastic strains: a sheet clamped in two concentric circles, boundaries are twisted against each other applying torque, simple shear of arises. This deformation analysed within scope finite elasto-plasticity. An additive decomposition Almansi strain tensor derived, valid as an appro...

Abstract The current work presents a new test method to evaluate liquid metal embrittlement (LME) susceptibility of zinc-coated steels in arc processes under application-oriented conditions. procedure is based on the programmable deformation cracking (PVR test). PVR variation controlled tensile for hot investigations welding processes. Two dual-phase (DP600, DP980) and five transformation-induc...

The magnetic properties of commercial dual-phase (DP) steels (DP600, DP800 and DP1000 grades) were evaluated using initial permeability, incremental permeability coercivity correlated with the key microstructural differences between grades. ferrite grain sizes fractions have been compared parameters obtained from minor major magnetisation loops within each DP grade. It has revealed that increas...