KeynoteConstrained Bending of Paperboard Analysed with Digital Image Correlation and Finite Element Simulations *E. Borgqvist (Tetra Pak Packaging Solutions), E. Lacaj (Lund University Division of Solid Mechanics), F. Claesson (Gemello Engineering), A. Bäckström (Lund Univiersity), S. Hall (Lund University Division of Solid Mechanics), M. Wallin (Lund University Division of Solid Mechanics), M. Ristinmaa (Lund University Division of Solid Mechanics)