Abstract
Biomimetic scales are known to substantially alter the curvature dependent properties of mechanical materials engendering complex nonlinearities that can manifest even in small deformations due to scales interaction. Such scales are ubiquitous in nature and known to endow the organism with several mechanical and multifunctional advantages. Since then, tremendous interest has been gathering in mimicking these structures in materials to obtain high performance including stiffness gains and tunable elasticity. Although experimentally straightforward to demonstrate, the fundamental source of these behavior are difficult to model beyond simple geometries due the complications arising from scales interactions. The dynamic behavior of such biomimetic systems is the focus of this presentation. Fostering a deeper understanding of the origins of these nonlinearities for a scale covered elastica can provide useful information towards controlling their deformation behavior in various bending and twisting modes. Such nonlinearities involve various aspect of scales interaction, geometrical sliding and interfacial friction and their combinations. In this work we discuss a special class of these materials, one which behave like nonlinear elastica. The vibrational characteristic and various nonlinearities will be discussed and suitable means of controlling them introduced.
Date Created
March 2017
STARS Citation
Ali, Hessein, "Oscillations of Biomimetic Scales Elastica" (2017). EGS Content. 16.
https://stars.library.ucf.edu/egs_content/16
https://works.bepress.com/hessein-ali/1/download/