A very simple procedure to adapt "ont-the-fly" the time-stepping schemes
in the simulation of delamination [Allix et al. 2010]. A statically
admissible solution is reconstructed by interpolation between two
sucessive time solutions. A measure of the non-verification of the
constitutive law of this reconstructed solution over each time interval
provides a valid error estimate for the time discretisation scheme. It
is used to adapt the load steps (value of the arc-length parameter in
this particular case).
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