Origami concave tubes for energy absorption
نویسندگان
چکیده
منابع مشابه
Origami tubes with reconfigurable polygonal cross-sections.
Thin sheets can be assembled into origami tubes to create a variety of deployable, reconfigurable and mechanistically unique three-dimensional structures. We introduce and explore origami tubes with polygonal, translational symmetric cross-sections that can reconfigure into numerous geometries. The tubular structures satisfy the mathematical definitions for flat and rigid foldability, meaning t...
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Thin sheets have long been known to experience an increase in stiffness when they are bent, buckled, or assembled into smaller interlocking structures. We introduce a unique orientation for coupling rigidly foldable origami tubes in a "zipper" fashion that substantially increases the system stiffness and permits only one flexible deformation mode through which the structure can deploy. The flex...
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The energy absorption and load-bearing capacity of single and concentric multilayer tubes under axial compression are studied with an eye toward optimization per structural mass or volume available for deformation. The specimens are laterally confined on their inner and outer surfaces by rigid walls to stabilize the deformation, but the effect of confinement diminishes as the number of layers i...
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We study the resonant absorption of MHD waves in magnetized flux tubes with a radial density inhomogeneity. Within the approximation that resistive and viscous processes are operative in thin layers surrounding the singularities of the MHD equations, we give the full spectrum of the eigenfrequencies and damping rates of the MHD quasi modes of the tube. Both surface and body modes are analyzed.
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ژورنال
عنوان ژورنال: International Journal of Solids and Structures
سال: 2019
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2019.03.026