Equilibria and Instabilities of a Slinky: Discrete Model

Autor:	Holmes, Douglas P., Borum, Andy D., Moore III, Billy F., Plaut, Raymond H., Dillard, David A.
Rok vydání:	2014
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Physics Education Physics - Popular Physics
Druh dokumentu:	Working Paper
DOI:	10.1016/j.ijnonlinmec.2014.05.015
Popis:	The Slinky is a well-known example of a highly flexible helical spring, exhibiting large, geometrically nonlinear deformations from minimal applied forces. By considering it as a system of coils that act to resist axial, shearing, and rotational deformations, we develop a discretized model to predict the equilibrium configurations of a Slinky via the minimization of its potential energy. Careful consideration of the contact between coils enables this procedure to accurately describe the shape and stability of the Slinky under different modes of deformation. In addition, we provide simple geometric and material relations that describe a scaling of the general behavior of flexible, helical springs. Comment: 11 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1403.6809 Zobrazit plný text záznamu View this record from Arxiv