Quantitative evaluation on mechanical characterization of Ti6Al4V porous scaffold designed based on Weaire-Phelan structure via experimental and numerical analysis methods

Hao, Mingzhong; Wei, Chengjian; Liu, Xin; Ge, Yun; Cai, Jing

doi:10.1016/j.jallcom.2021.160234

Cited by 17 publications

(2 citation statements)

References 41 publications

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“…However, for the layer-bylayer collapse lattice structure, the unique deformation behavior leads to an increase in the magnitude of the plateau collapse stress. Generally speaking, uniform lattice structures usually exhibit typical diagonal shear failure under compressive loading, [8][9][10][11] while lattice structures with a density gradient parallel to the loading direction exhibit layer-by-layer collapse under compressive loading. [12][13][14] Although there are many researchers who have studied the density gradient lattice structure, many past studies have focused solely on designing one way to vary the density gradient in a lattice structure and comparing it to uniform lattice structure.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Response and Energy Absorption of 316L Stainless Steel Body‐Centered‐Cubic Functionally Graded Lattice Structures under Quasistatic Compressive Test

Shi,

Lin,

et al. 2023

Adv Eng Mater

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Five different density gradient variation strategies are proposed for body‐centered‐cubic (BCC) lattice structures in parallel to the loading direction prepared by selective laser melting with 316 L stainless steel as the building material, and the mechanical properties, deformation behavior, and energy absorption capacity of lattice structures with different density gradient variations and uniform lattice structure under compressive loading are investigated and compared. The results show that the elastic modulus and compressive strength of the uniform lattice structure are better than those of the lattice structure with density gradient parallel to the loading direction, provided that the relative densities are similar. However, through a reasonable design of density gradient, the lattice structure with density gradient parallel to the loading direction can obtain higher plateau stress than the uniform lattice structure and increase the onset densification strain to a certain extent, which obviously improves the energy absorption capacity of the lattice structure. The results obtained by finite‐element calculations are in good agreement with the experimental results and can better restore the deformation behavior of the lattice structure under compressive loading. This work provides inspiration for the design of the density gradient of the lattice structure.

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Section: Introductionmentioning

confidence: 99%

Mechanical Response and Energy Absorption of 316L Stainless Steel Body‐Centered‐Cubic Functionally Graded Lattice Structures under Quasistatic Compressive Test

Shi,

Lin,

et al. 2023

Adv Eng Mater

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show abstract

“…Ideal scaffolds are produced with a well-regulated pore structure and can reproduce the shape of the implants [6][7][8][9]. Research studies have indicated that anisotropic porous structures with a combination of small and large pores in various shapes are advantageous for cell growth and can improve cell proliferation over time [7,10,11]. Therefore, characterising and predicting the biomechanical properties of 3D-printed scaffolds using different materials is essential.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behaviour Evaluation of Porous Scaffold for Tissue-Engineering Applications Using Finite Element Analysis

et al. 2022

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In recent years, finite element analysis (FEA) models of different porous scaffold shapes consisting of various materials have been developed to predict the mechanical behaviour of the scaffolds and to address the initial goals of 3D printing. Although mechanical properties of polymeric porous scaffolds are determined through FEA, studies on the polymer nanocomposite porous scaffolds are limited. In this paper, FEA with the integration of material designer and representative volume elements (RVE) was carried out on a 3D scaffold model to determine the mechanical properties of boron nitride nanotubes (BNNTs)-reinforced gelatin (G) and alginate (A) hydrogel. The maximum stress regions were predicted by FEA stress distribution. Furthermore, the analysed material model and the boundary conditions showed minor deviation (4%) compared to experimental results. It was noted that the stress regions are detected at the zone close to the pore areas. These results indicated that the model used in this work could be beneficial in FEA studies on 3D-printed porous structures for tissue engineering applications.

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Design and 3D printing of novel titanium spine rods with lower flexural modulus and stiffness profile with optimised imaging compatibility

et al. 2023

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Quantitative evaluation on mechanical characterization of Ti6Al4V porous scaffold designed based on Weaire-Phelan structure via experimental and numerical analysis methods

Cited by 17 publications

References 41 publications

Mechanical Response and Energy Absorption of 316L Stainless Steel Body‐Centered‐Cubic Functionally Graded Lattice Structures under Quasistatic Compressive Test

Mechanical Response and Energy Absorption of 316L Stainless Steel Body‐Centered‐Cubic Functionally Graded Lattice Structures under Quasistatic Compressive Test

Mechanical Behaviour Evaluation of Porous Scaffold for Tissue-Engineering Applications Using Finite Element Analysis

Design and 3D printing of novel titanium spine rods with lower flexural modulus and stiffness profile with optimised imaging compatibility

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