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An Identification Method for Anisotropic Plastic Constitutive Parameters of Sheet Metals
2020
Procedia Manufacturing
In this work, the virtual fields method (VFM) was extended to simultaneously identify the constitutive parameters of Hill 1948 anisotropic yield criterion and nonlinear kinematic hardening models for rolled sheet metals from a low cycle tension-compression test. First, simulations of different specimens under loading were conducted to determine a specific configuration which exhibits both insignificant buckling effect and heterogeneous stress state. Then, the simulated data were utilized to
doi:10.1016/j.promfg.2020.04.251
fatcat:rulkxgpvwjaqlmby25hucos2ky