Inverse error propagation and model identification for coupled dynamic problems with application to electromagnetic metal forming

摘要: Abstract The purpose of this work is the development and application strategies to identify material model parameters for metals at high strain-rates using data obtained from high-speed electromagnetic metal forming. To end, a staggered algorithm finite-element-based numerical solution coupled electromagnetic-mechanical boundary-value problem has been developed based on mixed Eulerian–Lagrangian multigrid methods. On basis, parameter determination together with sensitivity analysis error estimation are carried out. After verifying validity approach synthetic sets, it applied identification experimental results tube