Inverse parameter identification of sheet metals utilizing the distribution of field variables

摘要: The accurate simulation of sheet metal forming processes requires the description material behaviour. This is accomplished by utilization sophisticated constitutive models that use several parameters. work proposes a procedure which makes distribution field variables to identify parameters help inverse analysis. In this procedure, on surface captured an optical measurement system during process, capable computing displacement and strain distribution. finite element same process also performed. However, it not possible compare experimental data directly with results because differences regarding coordinate systems discretizations in space time domain. These problems are solved transformations parameter mapping. applied simple tension test as application example, flow curves two materials calculated successfully.