Open AccessNumerical simulation of hydraulic bulging using uniaxial and biaxial flow curves and different yield criteria
Author(s) -
Ved Prakash,
Deepak Kumar,
Marion Merklein,
Hinnerk Hagenah
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/651/1/012038
Subject(s) - finite element method , constitutive equation , materials science , sheet metal , hardening (computing) , flow stress , yield (engineering) , computer simulation , plasticity , flow (mathematics) , structural engineering , mechanics , work hardening , composite material , alloy , engineering , microstructure , physics , layer (electronics)
In sheet metal forming industry, finite element analysis has become a necessary step before actual production of the parts. It helps in the improvement of part quality as well reduces the effort applied in experimental trials. However, the success of finite element simulation mainly depends on the constitutive model used for defining the plastic deformation behaviour of the sheet material. Material characterization in biaxial stress state helps in selecting advanced constitutive models in numerical simulations. In this work, aluminium alloy AA5083 sheet material is characterized in uniaxial and biaxial tension conditions. Hydraulic bulge tests are performed to obtain the flow curves and material properties which are then used to find the coefficients in different yield criteria. These coefficients and the flow curves, fitted using different work hardening laws, are used in finite element simulation of the hydraulic bulge test and the results are validated by experiments.