|About this Abstract
||NUMISHEET 2022: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||A Phase-field Modeling Study of Sheared Edge Formability of Steels
||Fabio Di Gioacchino, Kip Findley, Emmanuel De Moor, Kester Clarke, David Matlock, John Speer
|On-Site Speaker (Planned)
||Fabio Di Gioacchino
The phase-field modeling of fracture can predict complex crack patterns without requiring ad-hoc criteria of crack initiation, coalescence and propagation. Here, the phase-field modeling formulation of ductile fracture described in (Ambati et al., A phase-field model for ductile fracture at finite strains and its experimental verification, Comput Mech 2016) is implemented in the open-source FEniCS finite element computing platform, and used to simulate the response of wire-cut and punched sheets of Q&P and DP steels to tensile stresses. Predictive capabilities are assessed by comparison with the experimental measurements of hole expansion ratios. The combined effect of yield stress, work hardening and critical release energy rates on the sheared edge formability of steels is discussed.
||Definite: At-meeting proceedings