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Variation In Setal Micromechanics And Performance Of Two Gecko Species, Travis J. Hagey, Jonathan B. Puthoff, Madisen Holbrook, Luke J. Harmon, Kellar Autumn
Variation In Setal Micromechanics And Performance Of Two Gecko Species, Travis J. Hagey, Jonathan B. Puthoff, Madisen Holbrook, Luke J. Harmon, Kellar Autumn
Biology
Biomechanical models of the gecko adhesive system typically focus on setal mechanics from a single gecko species, Gekko gecko. In this study, we compared the predictions from three mathematical models to experimental observations considering an additional gecko species Phelsuma grandis, to quantify interspecific variation in setal micromechanics. We also considered the accuracy of our three focal models: the frictional adhesion model, work of detachment model, and the effective modulus model. Lastly, we report a novel approach to quantity the angle of toe detachment using the Weibull distribution. Our results suggested the coupling of frictional and adhesive forces in isolated setal …