Comparison of numerical, empirical and local partition methods in ADCB specimens
by Victoria Mollón; Jorge Bonhomme; Ahmed Elmarakbi; Jaime Viña; Antonio Argüelles
International Journal of Automotive Composites (IJAUTOC), Vol. 1, No. 4, 2015

Abstract: It is well-known from the scientific literature that the asymmetric double cantilever beam (ADCB) specimen is subjected to mixed-mode I/II load at the crack tip. In these samples, the crack plane lies outside the laminate midplane. In this work, the energy release rate in modes I and II (G_I and G_II) are obtained by different approaches. The analytical determination of G_I and G_II in ADCB samples is not simple or straightforward and is usually based on partition methods. Numerical results obtained from finite element analysis (FE) are compared with the analytical local partition method (LP) for a carbon fibre epoxy AS4/3501-6 laminate. Both results are also compared with an empirical formulation obtained in previous works. Results obtained from all three methods are in good agreement.

Online publication date: Thu, 13-Aug-2015

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