Research Progress on Simulation Modeling of Metal Foams

Qiu, Sawei; Xinna, Zhang; Hao, Qingxian; Dou, Renjun; Jin, Yan; Hu, Yuebo

doi:10.1016/s1875-5372(16)60016-4

Cited by 14 publications

(7 citation statements)

References 31 publications

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“…However, it is difficult to obtain the porous amorphous NiTi using the above methods primarily due to the high melting point of titanium nickelide, T m 1600 K [31,32]. Absence of comprehensive experimental measurements and numerical simulations is the reason why the physical and mechanical properties of porous amorphous NiTi are still poorly studied [33,34,35,36,37]. Improved computational methods and models are required to reproduce the structure and properties of the porous amorphous NiTi [23,38].…”

Section: Introductionmentioning

confidence: 99%

Mechanical response of mesoporous amorphous NiTi alloy to external deformations

Galimzyanov

Мокшин

2021

International Journal of Solids and Structures

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The porous titanium nickelide is very popular in various industries due to unique combination of physical and mechanical properties such as shape memory effect, high corrosion resistance, and biocompatibility. The non-equilibrium molecular dynamics simulation was applied to study the influence of porosity degree on mechanical properties of porous amorphous titanium nickelide at uniaxial tension, uniaxial compression, and uniform shear. We have found that the porous amorphous alloy is characterized by a relatively large value of Young's modulus in comparison to its crystalline analogue. It has been found that the system with a percolated network of pores exhibits improved elastic characteristics associated with resistance to tensile and shear. The system contained isolated spherical pores is more resistant to compression and less resistant to tensile and shear. These results can be applied to develop and improve the methods for making amorphous metal foams.

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Section: Introductionmentioning

confidence: 99%

Mechanical response of mesoporous amorphous NiTi alloy to external deformations

Galimzyanov

Мокшин

2021

International Journal of Solids and Structures

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“…The pore-filling method of three-dimensional porous materials is composed of three-dimensional polyhedrons, and the most common polyhedron models include tetrahedrons, octahedrons, dodecahedrons, and tetrakaidecahedrons. 20 The tetrakaidecahedral model is considered to have the highest porosity with the minimum pore surface area per unit volume. In addition, if the tetrakaidecahedral unit cell model is regularly arranged in a body-centered cubic arrangement, it can completely fill the entire three-dimensional space.…”

Section: Establishment Of a Macroscopic Finite Element Model For The mentioning

confidence: 99%

Finite element analysis modeling research on the compression process of cotton fiber assembly

Chen

Wang

et al. 2019

Textile Research Journal

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In order to analyze the compressive stress state of a cotton fiber assembly in the compression process, a new cotton fiber assembly model, the tetrakaidecahedral porous cotton fiber assembly model, is presented based on the idea of three-dimensional open-cell foam material modeling. Based on the model, the compression process of cotton fiber assembly is analyzed using the finite element method. The change in the compressive stress of the cotton fiber assembly in the compression process is successfully described. The measurement method of compressive modulus of the cotton fiber assembly is also studied, and the relation between compressive modulus and relative density of the cotton fiber assembly is determined. Finally, the effect of different moisture regain on compressive stress of the cotton fiber assembly is analyzed, and the reference value of moisture regain in the cotton baling process is given. The results show that the simulation results are consistent with the actual situation. Therefore, the established model of cotton fiber assembly has validity.

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“…The foam microstructure is modeled with regard to the randomness of pore sizes, and thus, the characteristics of real foams are well captured. [ 22 ] In the present work, we introduce an improved algorithm for digital generation of foam structures. This enables the systematic regulation of the foam topology and the precise control of geometrical parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Left: Effective Young's modulus by means of Equation (23) normalized with the corresponding Voigt bound E V ¼ c s E s . Right: relative error e rel according to Equation(22) and the deviationA according to(22). The error bars mark the maximum deviation with respect to the tuple of the three loading directions max i∈f1,2,3g jE m À E i j.…”

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confidence: 99%

Simulative Determination of Effective Mechanical Properties for Digitally Generated Foam Geometries

Reder,

Holland-Cunz,

Lorson

et al. 2023

Adv Eng Mater

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Metal foams constitute a promising and emerging material class in the context of lightweight construction. There exists a variety of different foam topologies, on which resulting mechanical properties depend. To maximize the potential of foams in material use under mechanical load, the present work addresses the question how different geometrical parameters influence the material behaviour. Therefore, an algorithm for digital generation and design of open pore foam structures is presented, that allows to regulate the geometry precisely. A method for retrieving effective mechanical properties from numerical simulations of compression tests in the elastic regime is introduced. Additionally, the representativeness of foam volumes considered for simulations is investigated. This yields a fully digital workflow, which enables the investigation of geometry influence on mechanical properties. This approach is used to conduct simulation studies on generated foam structures with a systematic variation of geometrical parameters. Herein, a range of effective Young's moduli varying by up to a factor of 1.3 for different foam structures at the same porosity is found. This shows a significant impact of the foam geometry on the elastic properties of metal foams. The presented methodology yields insights, which can guide design and optimization of materials for specific applications.

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Research Progress on Simulation Modeling of Metal Foams

Cited by 14 publications

References 31 publications

Mechanical response of mesoporous amorphous NiTi alloy to external deformations

Mechanical response of mesoporous amorphous NiTi alloy to external deformations

Finite element analysis modeling research on the compression process of cotton fiber assembly

Simulative Determination of Effective Mechanical Properties for Digitally Generated Foam Geometries

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