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Forming limit diagram predictions using a self-consistent crystal plasticity model: a parametric study

Published

Author(s)

Youngung Jeong, Minh-Son Pham, Mark A. Iadicola, Adam A. Creuziger

Abstract

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.
Proceedings Title
18th International ESAFORM Conference on Material Forming
Conference Dates
April 15-17, 2015
Conference Location
Graz

Keywords

Forming limit diagram, crystal plasticity, VPSC, Marciniak-Kuczynski

Citation

Jeong, Y. , Pham, M. , Iadicola, M. and Creuziger, A. (2015), Forming limit diagram predictions using a self-consistent crystal plasticity model: a parametric study, 18th International ESAFORM Conference on Material Forming, Graz, -1 (Accessed June 25, 2024)

Issues

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Created April 15, 2015, Updated March 27, 2017