In this paper, we present a numerical approach to evolution of decohesion in laminated composites based on incremental variational problems. An energy-based framework is adopted, in which we characterize the system by the stored energy and dissipation functionals quantifying reversible and irreversible processes, respectively. The time-discrete evolution then follows from a solution of incremental minimization problems, which are converted to a fully discrete form by employing the conforming finite element method. Results of a benchmark problem suggest that the resulting model allows to describe both initiation and propagation of interfacial decohesion, with a low sensitivity to spatial discretization.
@article{702764,
title = {Numerical approach to a rate-independent model of decohesion in laminated composites},
booktitle = {Programs and Algorithms of Numerical Mathematics},
series = {GDML\_Books},
publisher = {Institute of Mathematics AS CR},
address = {Prague},
year = {2010},
pages = {239-250},
url = {http://dml.mathdoc.fr/item/702764}
}
Zeman, Jan; Gruber, Pavel. Numerical approach to a rate-independent model of decohesion in laminated composites, dans Programs and Algorithms of Numerical Mathematics, GDML_Books, (2010), pp. 239-250. http://gdmltest.u-ga.fr/item/702764/