Abstract
The problem of determination of the flow stress of sheet material for larger strains was investigated. Plastometric tests for the sample made as a pile of disks cut from the strip were performed. In order to avoid sliding the discs were placed in a tube made of the IF steel and CuCr alloy. Flow stress of the IF steel and CuCr alloy was determined on the basis of compression tests for cylindrical samples. With the data obtained it was possible to perform the analysis to identify the model for TRIP steel using inverse analysis for the compression of the assembled samples. The developed model was used in two case studies. The first was simulation of stamping of the automotive part. The second was simulation of strength of the anchor-concrete joint, in which the expansion sleeve was made of the TRIP steel.