Figure 6.
Morphology phase diagrams from discrete filament simulations for N = 181 (a) and N = 59 (b), where a threshold value of aspect ratio α = 1.5 is used to distinguish cylinders from tapes and apparent aspect ratios of bars highlight optimal energy aspect ratios. Dashed line is drawn from predicted threshold for critical twist to stabilize fivefolds in cylindrical bundles and solid blue line is determined by continuum theory prediction for fixed N (and λB = 0) transition between defect-free cylinders and tapes (as discussed in the text).