Finite element simulation of springback for a channel draw process with drawbead using different hardening models

摘要: Abstract The objective of this work is to predict the springback Numisheet’05 Benchmark#3 with different material models using commercial finite element code ABAQUS. This Benchmark consisted drawing straight channel sections sheet materials and four drawbead penetrations. Numerical simulations were performed Hill's 1948 anisotropic yield function two types hardening models: isotropic (IH) combined isotropic-nonlinear kinematic (NKH). A user-defined subroutine was developed based on quadratic mixed for both ABAQUS-Explicit (VUMAT) ABAQUS-Standard (UMAT). behavior AA6022-T43 aluminum alloy described Voce model that DP600, HSLA AKDQ steels Hollomon's power law. Kinematic modeled Armstrong–Frederick nonlinear purpose accounting cyclic deformation phenomena such as Bauschinger effect stress saturation which are important prediction. penetration or restraining force has also been studied. Experimental shear tests carried out in order determine stress–strain behavior. Comparisons between simulation results experimental data showed IH generally overestimated predicted amount due higher stresses derived by model. On other hand, NKH able significantly more accurately than