EXAMPLE 8, Slide 6: Local buckling of optimized spherical balloon made of polyethylene terephthalate; 35 truss-like modules over 90 meridional degrees

This is Fig. 24 from the 2012 GENOPT paper. This slide shows LOCAL axisymmetric (N = 0 circumferential waves) buckling of the optimized spherical balloon with 35 modules over 90 degrees of meridian and with truss-like (slanted) webs.

As seen from the previous figure this configuration (35 modules, truss-like webs) corresponds to the spherical balloon with truss-like webs with the smallest optimized weight as a function of the number of modules.

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