Single skin-stiffener module showing the layer numbering and nodal point numbering conventions used in PANDA2

This is Fig. 3 from the paper, "Optimization of composite, stiffened, imperfect panels under combined loads for service in the postbuckling regime" by David Bushnell, Computer Methods in Applied Mechanics and Engineering, Vol. 103, pp. 43-114, 1993.

This slide shows the segment and nodal point numbering and layer numbering conventions for a single panel module. Each segment of the single-module model has 11 equally spaced nodal points. The root of the stringer web (Segment no. 3, Nodal point no. 1) is attached at nodal point no. 6 in Segment no. 2.

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