Results 151 to 160 of about 1,662 (185)

Damping in auxetic materials and structures.

The Journal of the Acoustical Society of America, 2010
Negative Poisson’s ratio (NPR) (otherwise called auxetics) materials and structures feature enhanced energy absorption under cyclic loading both at low- and high-frequency excitations. We show in this paper experimental and simulation results related to open cell PU-PE foams, honeycombs, and composites, all exhibiting a negative Poisson’s ratio value ...
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Crush behaviour of auxetic cellular structures

Science and Technology of Materials, 2018
Abstract The auxetic cellular structures build from inverted tetrapods were fabricated and experimentally tested using uniaxial compression tests in two orthogonal directions. Based on experimental results, the computational models using homogenised material model were developed and validated in LS-DYNA. Furthermore, the computational models based on
N. Novak, M. Vesenjak, Z. Ren
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Measurement of Poisson's Ratio of the Auxetic Structure

SSRN Electronic Journal, 2022
Dilek Atilla Yolcu, Buket Okutan Baba
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Conventional and Auxetic SMA Cellular Structures

Aerospace, 2005
This work illustrates the manufacturing and tensile testing of a novel concept of honeycomb structures with hexagonal and auxetic (negative Poisson’s ratio) topology, made of shape memory alloy (SMA) core material. The honeycombs are manufactured using Nitinol ribbons having 6.40 mm of width and 0.2 mm of thickness.
Mohd R. Hassan, F. Scarpa, N. A. Mohammed, Y. Ancrenaz   +3 more
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Auxetic Structures Analysis: Exploratory Study on Auxetic Materials in Additive Manufacturing

Ibero-Latin American Congress on Computational Methods in Engineering (CILAMCE)
Auxetic structures have aroused significant interest in the scientific community due to their unique properties of lateral expansion when subjected to tensile forces, and transverse deformation when subjected to negative Poisson's ratio. This article offers an analysis of these structures, where the theoretical foundations of the negative Poisson's ...
null Erick Battiston, null Ricardo Favaro, null Hugo Sakai Idagawa   +2 more
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Fatigue response of auxetic structures: A review

Fatigue & Fracture of Engineering Materials & Structures
AbstractThe fatigue behavior of auxetic metamaterials is an interesting and recent research topic that will deserve future attention. How different geometries can interact with cyclic loadings is still an open question for these kinds of structures.
Parente J. M., Reis P. N. B., Berto F.
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Annuloplasty prosthesis with an auxetic structure

2007
An annuloplasty prosthesis including an inner tubular member having a lateral wall and exhibiting auxetic behavior when subject to a tensile stress along the longitudinal axis of at least one of its portions. The auxetic behavior may be obtained by perforating the tubular member with apertures of desired shape, thus obtaining, for instance, re-entrant ...
Gaetano Burriesci, Giovanni Bergamasco
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Design, manufacturing and applications of auxetic tubular structures: A review

Thin-Walled Structures, 2021
Chuan Zhen Han, Xiang Yu Zhang, Xue Gang Zhang   +2 more
exaly  

Anti-blast and -impact performances of auxetic structures: A review of structures, materials, methods, and fabrications

Engineering Structures, 2023
Rajendra Prasad Bohara, Steven Linforth
exaly  

Energy absorption of thin walled tube filled with gradient auxetic structures-theory and simulation

International Journal of Mechanical Sciences, 2021
Wei-Hsin Liao
exaly