Origami fold states: concept and design tool

Avila, Alex; Magleby, Spencer P.; Lang, Robert J.; Howell, Larry L.

The ability of origami to alter its properties and behaviors with its shape makes it an elegant source of inspiration for many engineering designs challenges. Fold states specify the shape of the origami – its facets, creases, and fold angles. Origami research recognizes several acknowledged fold states: the unfolded, fully folded, and flat-folded states. However, these fold states are not comprehensive, excluding some of the most predominant fold states in origami-based devices. In this paper we propose a comprehensive list of fold states based on fold angles. We support the method of categorizing fold states by evaluating the functions and fold states of a large sample of origami-based devices. These correlations provide insight for selecting fold states for origami-based design. We discuss properties and behaviors of the fold states individually and provide a process for fold-state selection.

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Avila, Alex / Magleby, Spencer P. / Lang, Robert J. / et al: Origami fold states: concept and design tool. 2019. Copernicus Publications.

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