Effect of solid distribution on elastic properties of open-cell cellular solids using numerical and experimental methods

Zargarian, A.; Esfahanian, Mohsen; Kadkhodapour, Javad; Ziaei-Rad, Saeed

doi:10.1016/j.jmbbm.2014.05.018

Cited by 19 publications

(15 citation statements)

References 24 publications

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“…Another advantage of 3D element FE model is that it can analyse the influence of the notch effect and the material concentration in the connection area of lattice struts which can predict a more accurate stress distribution in these locations [23]. It has been shown by the solid element FE model that, with the same porosity, the effective Young's modulus of the lattice structure will change dramatically by shifting the material from the edge to the vertices [100]. Besides, for the large deformation and nonlinear explicit dynamic analysis, the linear 3D elements with lumped mass matrix are required.…”

Section: Solid Element Modelmentioning

confidence: 99%

A Survey of Modeling of Lattice Structures Fabricated by Additive Manufacturing

Dong

Tang

Zhao

2017

Journal of Mechanical Design

241

128

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The lattice structure is a type of cellular material with trusslike frames which can be optimized for specific loading conditions. The fabrication of its intricate architecture is restricted by traditional manufacturing technologies. However, additive manufacturing (AM) enables the fabrication of complex structures by aggregation of materials in a layer-by-layer fashion, which has unlocked the potential of lattice structures. In the last decade, lattice structures have received considerable research attention focusing on the design, simulation, and fabrication for AM techniques. And different modeling approaches have been proposed to predict the mechanical performance of lattice structures. This review introduces the aspects of modeling of lattice structures and the correlation between them, summarizes the existing modeling approaches for simulation, and discusses the strength and weakness in different simulation methods. This review also summarizes the characteristics of AM in manufacturing cellular materials and discusses their influence on the modeling of lattice structures.

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Section: Solid Element Modelmentioning

confidence: 99%

A Survey of Modeling of Lattice Structures Fabricated by Additive Manufacturing

Dong

Tang

Zhao

2017

Journal of Mechanical Design

241

128

View full text Add to dashboard Cite

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“…This geometrical characteristic affects the resistance of the structure to elastic deformation. Simulation results presented in [50] indicate that the stiffness of unit cell structures increases with increasing the ratio between the joint solid fraction and the strut up to a critical point after which it drops. According to the authors, the moment of inertia of ligaments near the joint, at which the bending moment is a maximum, increases as the thickness of the joint increases.…”

Section: Elastic Propertiesmentioning

confidence: 97%

On the particle size effect in expanded perlite aluminium syntactic foam

Taherishargh

Sulong

Belova

et al. 2015

Materials & Design (1980-2015)

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“…According to the authors, there is an optimum ratio between the solid fraction of joints and struts in which the maximum stiffness is achieved [10]. Zargarian et al reported similar findings [7]. Most of these studies are focused on simplified porous patterns which limits their validity for actual configurations.…”

Section: Introductionmentioning

confidence: 98%

“…According to Fazekas et al, irregularity is caused by cells with large size differences or cells with irregular shapes [4]. There are some 2D numerical investigations on the effect of wall geometry, wall thickness distribution, and geometrical imperfections on mechanical properties of cellular solids with low density [4][5][6][7][8][9][10]. Fazekas et al showed that homogeneous cell structures result in higher compressive strength compared to that of perturbed structures [4].…”

Section: Introductionmentioning

confidence: 99%

The effect of particle shape on mechanical properties of perlite/metal syntactic foam

Taherishargh

Belova

Murch

et al. 2017

Journal of Alloys and Compounds

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In a previous work, a natural porous volcanic glass, expanded perlite (EP), was introduced for fabrication of cost-efficient metallic syntactic foams. Perlite metal syntactic foams (P-MSF) were produced by counter gravity infiltration of a packed bed of porous expanded perlite (EP) particles with molten aluminium. In the current study, the effect of EP particles shape on the mechanical and structural properties of foams were investigated. The irregular shape and coarse surface of raw EP particles were turned to near spherical shape with smooth surface using a tumbling process. Foams containing rounded EP particles showed higher mechanical strength at a constant density. The superior mechanical properties of foams with rounded EP particles are likely due their regular positioning and less structural defects.

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Effect of solid distribution on elastic properties of open-cell cellular solids using numerical and experimental methods

Cited by 19 publications

References 24 publications

A Survey of Modeling of Lattice Structures Fabricated by Additive Manufacturing

A Survey of Modeling of Lattice Structures Fabricated by Additive Manufacturing

On the particle size effect in expanded perlite aluminium syntactic foam

The effect of particle shape on mechanical properties of perlite/metal syntactic foam

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