Acknowledgements
K. Isik and A. E. Tekkaya gratefully acknowledge funding by
the German Research Foundation (DFG) within the scope of the
Transregional Collaborative Research Centre on sheet-bulk metal
forming (SFB/TR 73) in the subproject C4 ‘Analysis of load history
dependent evolution of damage and microstructure for the
numerical design of sheet-bulk metal forming processes’. M.B. Silva
and P.A.F. Martins would like to acknowledge Fundac¸ ão para a
Ciência e a Tecnologia of Portugal and IDMEC under LAETA −
UID/EMS/50022/2013 and PDTC/EMS-TEC/0626/2014.