Open AccessExperimental and Computational analysis of springback in dual phase steels
Author(s) -
Rodolfo Rodríguez Baracaldo,
Yeison Parra-Rodríguez,
José Manuel ArroyoOsorio
Publication year - 2021
Publication title -
scientia et technica
Language(s) - English
Resource type - Journals
eISSN - 2344-7214
pISSN - 0122-1701
DOI - 10.22517/23447214.24513
Subject(s) - anisotropy , materials science , dual phase steel , bending , martensite , microstructure , constitutive equation , finite element method , yield (engineering) , ultimate tensile strength , tensile testing , composite material , deformation (meteorology) , phase (matter) , metallurgy , structural engineering , engineering , physics , chemistry , organic chemistry , quantum mechanics
In this work the comfortability of dual-phase automotive steel DP600 is studied through uniaxial tensile tests and V-die bending tests in different directions relative to the rolling direction. A microstructural analysis was also carried out in each characteristic region of the deformation zone, evidencing the changes in the morphology of the microstructure grains. Additionally, the plastic anisotropy of the material was studied by implementing the constitutive anisotropy models known as Hill-48 and Barlat-89. The results showed an increase in elastic recovery at 45 ° and 90 ° from the rolling direction. This variation can be attributed to the morphology of the martensite that created preferential location zones within the material during the rolling process. The two models Hill-48 and Barlat-89 correctly describe the yield surface and the plastic anisotropy obtained in the experimental tests carried out. The simulation using the finite element method and the Hill-48 model gave satisfactory results in the prediction of the elastic recovery as compared to the experimental results obtained with the V-die bending test.