A novel modeling approach of aluminum foam based on MATLAB image processing

Zhu, Xiaolei; Ai, Shigang; Fang, Daining; Liu, Bin; Lu, Xiaofeng

doi:10.1016/j.commatsci.2013.10.020

Cited by 30 publications

(21 citation statements)

References 15 publications

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“…In order to extract precise information from the images, aluminum foam sections need to be pre-processed before capturing digital photo. However, the pre-processing for this modeling technique is easy and remarkably economical, especially in comparison with micro X-ray computed tomography scanning used previously [5]. In this method, a black color sprayed on cellular structure and the cross section was wiped immediately with a soft cloth.…”

Section: A-1) Heterogeneous Cross-section Of a Closed-cell Aluminum Foammentioning

confidence: 99%

“…However the lightness and satisfactory compressive properties are the crucial necessities expected from the porous core inside the sandwich structures [3]. Mechanical properties of cellular solids are principally affected by the following basic features [1,4,5]: a) relative density, b) base material properties, and c) pore architecture. Although, the impact of pore topology on mechanical behavior of cellular structures has not been widely investigated yet, the architecture of pores inside metallic foams was considered previously as the major characteristic affecting the deformation behavior of the foams.…”

Section: Introductionmentioning

confidence: 99%

“…Xiaolei Zhu et al [5] developed a new modeling approach to simulate the closed-cell aluminum foam structures in 2-D. At first, X-ray computed tomography scanning images captured from real aluminum foam morphology were imported into MATLAB software. Then, the two-step mesh method was employed to discrete network by choosing proper number of nodes on the images.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of the Cell Shape on Compressive Mechanical Behavior of 3D Printed Extruded Cross-sections

Raeisi

Tovar

2018

SAE Technical Paper Series

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Additive manufacturing has been a promising technique for producing sophisticated porous structures. The pore's architecture and infill density percentage can be easily controlled through additive manufacturing methods. This paper reports on development of sandwich-shape extruded cross sections with various architecture. These lightweight structures were prepared by employing additive manufacturing technology. In this study, three types of cross-sections with the same 2-D porosity were generated using particular techniques. a) The regular cross section of hexagonal honeycomb, b) The heterogeneous pore distribution of closed cell aluminum foam cross section obtained from image processing and c) linearly patterned topology optimized 2-D unit cell under compressive loading condition. The optimized unit cell morphology is obtained by using popular two-dimensional topology optimization code know as 99-line code, and by having the same volume fraction as the heterogeneous foam. The upper edge of the unit cell was under distributed uniform loading and the lower edge was fixed. All the cross sections have the same cavity to wall area ratio on their 2-D configuration. The samples are extruded to produce 3-D CAD model of sandwich shape porous structures. The different samples are tested with universal compression machine and mechanical characteristics of the models are investigated. Furthermore, the energy absorption efficiency and load bearing capability of samples are studied. The results of the experimental procedure are compared to numerical simulations under quasi-static condition.

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Section: A-1) Heterogeneous Cross-section Of a Closed-cell Aluminum Foammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of the Cell Shape on Compressive Mechanical Behavior of 3D Printed Extruded Cross-sections

Raeisi

Tovar

2018

SAE Technical Paper Series

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“…As ceramic reinforcements improved compression and energy absorption properties of the composite foams, they have remitted many limitations for load bearing and energy absorption applications [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Compressive properties and energy absorption of aluminum composite foams reinforced by in-situ generated MgAl 2 O 4 whiskers

Guo

Zou

Shi

et al. 2015

Materials Science and Engineering: A

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“…In the paper [5], it is shown that the pore size variation influences pressure drop of fluid flowing [3,6,7] authors presented numerical simulations of elastic properties of random metallic foams with non-uniform pore size. Pore size variation, however, is not strictly quantified there and no relationship between structural non-uniformity and elastic properties is derived basing on the computations.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams

Ćwieka

Wejrzanowski

Kurzydłowski

2017

Archives of Metallurgy and Materials

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In the present paper we present the approach for modeling of the elastic behavior of open-cell metallic foams concerning non-uniform pore size distribution. This approach combines design of foam structures and numerical simulations of compression tests using finite element method (FEM). In the design stage, Laguerre-Voronoi tessellations (LVT) were performed on several sets of packed spheres with defined variation of radii, bringing about a set of foam structures with porosity ranging from 74 to 98% and different pore size variation quantified by the coefficient of pore volume variation, CV(V), from 0.5 to 2.1. Each structure was numerically subjected to uni-axial compression test along three directions within the elastic region. Basing on the numerical response, the effective Young's modulus, E eff , was calculated for each structure. It is shown that the E eff is not only dependent on the porosity but also on the pore size variation.

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A novel modeling approach of aluminum foam based on MATLAB image processing

Cited by 30 publications

References 15 publications

The Effect of the Cell Shape on Compressive Mechanical Behavior of 3D Printed Extruded Cross-sections

The Effect of the Cell Shape on Compressive Mechanical Behavior of 3D Printed Extruded Cross-sections

Compressive properties and energy absorption of aluminum composite foams reinforced by in-situ generated MgAl 2 O 4 whiskers

Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams

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