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. 2013 Jul 3;110(30):12180–12185. doi: 10.1073/pnas.1302113110

Fig. 3.

Fig. 3.

Demonstration of the counterbend effect on filament bundles for three horizontal displacements d, a sliding resistance Inline graphic, and two basal constraints: internally anchored filaments at Inline graphic (welded bundle) (AC) and filament bundles with no basal sliding resistance (DF). The black arrows depict the actuation force required to hold the filament bundle at a given displacement d and the associated reaction force at the clamped base. The magnitude of this force was found to be Inline graphic for Inline graphic in AC and Inline graphic for Inline graphic in DF, respectively. Sliding deformations are represented by the internal connecting links, where the overlaid surface coloring indicates the sliding displacement distribution Inline graphic relative to the bundle diameter b.