|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Analysis of Damage and Fracture Mechanisms in Steel Sheets: Biaxial Experiments and Numerical Simulations
||Michael Bruenig, Moritz Zistl, Steffen Gerke
|On-Site Speaker (Planned)
The presentation discusses new experiments and corresponding numerical simulations to analyze the effect of non-proportional loading paths on damage and fracture behavior of steel sheets. An anisotropic continuum damage model is presented based on criteria corresponding to various stress-state-dependent damage and failure processes on the micro-level. Experiments with the biaxially loaded specimens have been performed. Results for proportional and corresponding non-proportional loading histories are discussed. During the experiments strain fields in critical regions of the specimens are analyzed by digital image correlation technique while the fracture surfaces are examined under scanning electron microscope. Numerical simulations of the experiments have been performed and numerical results are compared with experimental data. The results demonstrate the efficiency of the experimental program covering a wide range of stress states in the shear/tension and shear/compression regime as well as the effect of loading history on damage and fracture behavior in steel sheets.
||Definite: At-meeting proceedings