The CAD geometry of composite panels is usually described by a surface. In order to analyse the stress concentrations due to material heterogeneities (for instance to predict delamination), a 3D geometrical model has to be created.
We developed a reliable algorithm to create 3D layers of materials, given the mid-surface description in the form of NURBS. We showed that this technology could be easily used within the Isogeometric Analysis context for the damage assessment of thin panels directly from CAD.
Simulations by V.P. Nguyen, P. Kerfriden and S.P.A. Bordas.
Funding: FP7 ITN INSIST
https://doi.org/10.1016/j.compositesb.2013.12.018
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