Mechanical behavior of all-composite pyramidal truss cores sandwich panels

Sun, Yi; Gao, Liang

doi:10.1016/j.mechmat.2013.06.003

Cited by 16 publications

(3 citation statements)

References 29 publications

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“…The hollow lattice had performance features beyond those of the solid lattice, such as an improved anti-buckling ability. Sun and Gao (2013) improved the carbon fiber pyramid lattice structure, and this improved structure achieved better comprehensive performance. Fan et al (2014) prepared a pyramidal lattice structure with glass fiber and conducted a compression experiment, demonstrating that the multi-level lattice structure had a higher ductility and energy absorption efficiency with regard to energy absorption.…”

Section: Introductionmentioning

confidence: 94%

Compression properties of two-dimensional wood-based dowel lattice structure filled with polyurethane foam

Cheng

et al. 2019

BioRes

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Foam-filled two-dimensional lattice structures were designed, and their compression performance was studied relative to corresponding structures without the foam. The experimental results showed that the compressive load of foam-filled lattice structures improved greatly compared with foam-unfilled specimens. The specific energy absorption (SEA) of foam-unfilled specimens exceeded that of the corresponding foam-filled lattice structure. The maximum energy absorption efficiency of the foam-unfilled lattice structure exceeded 1.5, while that of the foam-filled lattice structure was less than 1. The theoretically predicted compression performance was close to the experimental results. The wood-based lattice structure exhibited excellent specific strength and stiffness compared with other structures.

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Section: Introductionmentioning

confidence: 94%

Compression properties of two-dimensional wood-based dowel lattice structure filled with polyurethane foam

Cheng

et al. 2019

BioRes

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“…Studying the topological configuration of unit cells of lattice structures and exploring the influence principle of the unit cells on macroscopic performance are the key to realize the free-regulation of metallic lattice structures. In the study of metallic lattice structures, scientists have proposed a variety of representative unit cells, such as tetrahedral [3,8], octahedron [5,9], pyramid [10][11][12][13], Kagome [14][15][16][17] and other unit cell structures, but most of unit cells perform the anisotropic properties and limit the breadth of application of the metallic lattice structures. In order to seek the unit cells with more isotropic properties, Kelvin and Plateau [18] hypothesized and proposed a perfect unit cell structure.…”

Section: Introductionmentioning

confidence: 99%

Damping behaviors of steel-based Kelvin lattice structures fabricated by indirect additive manufacture combining investment casting

Yan

Yang

et al. 2020

Smart Mater. Struct.

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The lattice structures have broad application prospect in the fields of lightweight design, vibration and noise reduction and so on. In this work, firstly, steel-based lattice structures were designed based on Kelvin unit cell with isotropic properties. Then, steel-based lattice structures were prepared by using of indirect additive manufacture combining with investment casting process. Thirdly, the finite element numerical simulation and modal testing of the dynamic damping performance of the steel-based lattice structures were carried out. The results show that changing the porosity of the lattice structures, the vibration parameters such as the natural frequency and damping ratio of the lattice structures can be well regulated. At the same time, the damping ratios of the lattice structures are considerably improved compared with the solid materials.

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“…proposed and tested, including tetrahedral [3,4] , octahedron [5,6] , pyramid [7][8][9][10] , and Kagome [11][12][13][14] unit cells. Wallach et al [15] studied the mechanical behaviors of the metallic lattice structures with octahedral unit cell through theoretical modeling and flat compression, tension and shear experiments.…”

mentioning

confidence: 99%

Numerical simulation and experimental validation on fabrication of nickel-based superalloy Kagome lattice sandwich structures

Yan

Yang

et al. 2020

China Foundry

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L attice sandwich structures composing of panels and lattice cores have been paid more and more attention in recent years. The lattice sandwich structures possess structural characteristics of lightweight, high specific strength and stiffness, as well as functional characteristics such as vibration and noise reduction, energy absorption and heat dissipation. Therefore, it is considered as one of the most promising new generation lightweight structures [1, 2]. Among them, nickel-based superalloy lattice sandwich structures have a broad application prospect in the aerospace field due to their lightweight and high temperature resistance. At present, research of the lattice sandwich structures are mainly focused on mechanical analysis and preparation processes. In order to obtain excellent performance, various representative unit cell structures have been

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Mechanical behavior of all-composite pyramidal truss cores sandwich panels

Cited by 16 publications

References 29 publications

Compression properties of two-dimensional wood-based dowel lattice structure filled with polyurethane foam

Compression properties of two-dimensional wood-based dowel lattice structure filled with polyurethane foam

Damping behaviors of steel-based Kelvin lattice structures fabricated by indirect additive manufacture combining investment casting

Numerical simulation and experimental validation on fabrication of nickel-based superalloy Kagome lattice sandwich structures

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