Forming limit diagram predictions using a self-consistent crystal plasticity model: a parametric study
Youngung Jeong, Minh-Son Pham, Mark A. Iadicola, Adam A. Creuziger
A numerical model to predict forming limit diagram (FLD) for polycrystalline metal sheets is presented. In it, the Marciniak-Kuczynski (MK) approach is incorporated into the framework of the viscoplastic self-consistent (VPSC) crystal plasticity model. The current model, dubbed the VPSC-FLD, can run simulations along individual loading paths in parallel, which can make use of a CPU-cluster to enhance the computational speed. The main objective of current work is to provide a detailed sensitivity report based on the VPSC-FLD. First of all, the influence of the initial inhomogeneity, f , as defined in the MK approach, is illustrated. Secondly, FLDs resulting from various sizes of the statistical population for the crystallographic texture are examined. Lastly, the computation time spent for various sizes of the statistical population is given.
18th International ESAFORM Conference on Material Forming
, Pham, M.
, Iadicola, M.
and Creuziger, A.
Forming limit diagram predictions using a self-consistent crystal plasticity model: a parametric study, 18th International ESAFORM Conference on Material Forming, Graz, -1
(Accessed March 28, 2023)