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A three dimensional numerical investigation of a commercial four-ply paperboard formed into a pear-shaped mould was presented. The numerical investigation included the effect of pressure, boundary conditions, material properties and different deformation and damage mechanisms such as delamination and plasticity. Simulations were done in both the MD and CD using different pressures. A paperboard model with a combination of anisotropic continuum model and a softening interface model had good deformation behavior during the forming simulations. Forming experiment that mimicked the simulations was performed. Numerical and experiment results were compared with good agreement.

Numerical Investigation of Paperboard Forming