Simulation of the slitting process with the finite element method
H.H. Wisselink, J. Huétink
University of Twente, The Netherlands
Slitting is a sheet metal cutting process used for dividing coiled sheet
into narrower coils.
It is a stationary process in which the sheet is uncoiled, cut by circular
blades into strips, that are simultaneously recoiled.
A three-dimensional finite element model is developed for
the calculation of the steady state of this process.
An Arbitrary Lagrangian Eulerian (ALE) formulation is used
to be able to handle history dependent material properties
and moving free surfaces.
A crack front is modelled in the initial mesh.
To investigate whether the assumed crack front is correct,
a damage parameter is calculated.
The coupling between crackfront and damage is not implemented yet.
Results from the simulations of the slitting process are given, in which
the influence of some parameters on the process is investigated.
Keywords: Slitting, FEM, ALE, Ductile fracture