Abstract (EN):
An advanced sheet metal forming limit model is
developed. Using the Marciniak-Kuczinsky analysis, this
approach intends to join advantages of physics-based
aspects of plasticity with advantages of phenomenological
material description. It aims thus at connecting the most
advanced physically-based hardening model accounting for
the evolution of the anisotropic work hardening induced by
the microstructural evolution at large strains of Teodosiu
and Hu (1995) with the advanced phenomenological
anisotropic yield criterion Yld2000-2d (Barlat et al. Int J
Plast 19:1297–1319, 2003). Two deep-drawing quality
sheet metals are selected: a bake-hardening steel (BH) and
AA6016-T4 aluminium alloy. Linear and complex strain
paths are taken into account. By comparing the simulated
and experimental results the model is validated.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica