Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10425130 | Composites Science and Technology | 2012 | 14 Pages |
Abstract
The boundary element method (BEM) has been used to investigate energy release rates for constrained conditions for a range of ply crack densities, both in the presence and absence of thermal residual stresses, for a special case where the delamination tips are mid-way between neighbouring ply cracks. BEM results show a slight dependence of the energy release rate on ply crack separation, and predictions for the maximum ply crack separation considered are within 1.6% of the exact limiting analytical predictions valid for infinite separation. This agreement indicates the validity of both the analytical methods used, and the numerical analysis based on the BEM.
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Authors
L.N. McCartney, A. Blazquez, F. Paris,