A design method of Voronoi porous structures with graded relative elasticity distribution for functionally gradient porous materials

Liu, Bin; Cao, Wei; Zhang, Lingbo; Jiang, Kaiyong; Lü, Ping

doi:10.1007/s10999-021-09558-6

Cited by 15 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fantini and Curto (2018) and Liu et al. (2021) deliver volumetric porous structures. Martínez et al.…”

Section: Related Workmentioning

confidence: 99%

“…Cucinotta et al (2019) introduced a stress-based topology optimization method for digitally manufactured objects. Fantini and Curto (2018) and Liu et al (2021) deliver volumetric porous structures. Martínez et al (2016Martínez et al ( , 2018 introduce parametric strategies for producing general additive-manufactured objects.…”

Section: Voronoi Mesh As a Design Toolmentioning

confidence: 99%

See 1 more Smart Citation

Vorogrid: A static‐aware variable‐density Voronoi mesh to design the tube structure tessellation of tall buildings

Laccone

Gaudioso

Malomo

et al. 2022

Computer aided Civil Eng

View full text Add to dashboard Cite

In the context of tall building design, the tube concept represents one of the most performing systems. The diagrid is the widespread type of tube system and consists of a diagonal grid of beams that wraps the building, forming a diamond pattern. It performs as lateral bracing and is additionally able to sustain vertical loading through axial forces. Despite its efficiency, a growing interest is recently observed in alternative geometries to replace the diagrid pattern and improve the architectural impact conferred by the building skin aesthetics on the urban environment. The paper pursues the use of a Voronoi mesh, in which the geometry of the cells is steered to known schemes for the structural design of a cantilever tube structure. The objective is to mimic a macroscopic structural behavior through a topology and size modification of the Voronoi mesh that increases the density for creating resisting paths with higher stiffness. The paper proposes a novel method Vorogrid for designing a new class of tall buildings equipped with an organiclooking and mechanically sound tube structure, which makes them a valuable alternative to competitors (diagrid, hexagrid, random Voronoi). Diagrids and hexagrids still remain more efficient in terms of forces and displacements but are characterized by a more usual appearance, instead Vorogrid offers more design control and better performances on average with respect to random Voronoi structures. This method is streamed into a pipeline that includes grid initialization strategies, geometric and structural optimization to mitigate the effects of the grid randomness, and structural sizing.

show abstract

“…Fantini and Curto (2018) and Liu et al. (2021) deliver volumetric porous structures. Martínez et al.…”

Section: Related Workmentioning

confidence: 99%

Section: Voronoi Mesh As a Design Toolmentioning

confidence: 99%

Vorogrid: A static‐aware variable‐density Voronoi mesh to design the tube structure tessellation of tall buildings

Laccone

Gaudioso

Malomo

et al. 2022

Computer aided Civil Eng

View full text Add to dashboard Cite

show abstract

“…In recent work, Liu et al [14] tailored hierarchical relative elastic fields with random Voronoi structures through an improved design method for porous structures and tested the mechanical properties of the designed structures. Due to further refinement and validation, these design methods can now be used to engineer porous materials, including polymers, metals and ceramic foams.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Impact Behavior of Strut-Based Cellular Structures Designed by Spatial Voronoi Tessellation

Zhang

Guo

et al. 2022

Metals

View full text Add to dashboard Cite

Porous materials have significant advantages, such as their light weight and good specific energy absorption. This paper presents the designs of two ordered Voronoi structures, a truncated octahedron (Octa) and a rhombic dodecahedron (Dodeca), based on spatial Voronoi tessellation. Through a numerical analysis, the dynamic behavior, deformation and energy absorption of the two porous structures under different impact energies were explored. According to the energy-absorption index, the effects of porosity, rotating unit cell and unit-cell shape on the energy absorption of the porous structures were quantitatively evaluated. The study shows that, for Dodeca and Octa structures subjected to various impact energies, the force-displacement curves exhibit three modes. The porosity, rotational unit cell and unit-cell shape play a crucial role in affecting the impact resistance of porous structures. The work in this paper proposes an effective way to improve the energy-absorption capacity of porous structures under different impact energies. At the same time, a new understanding of the deformation mechanism of Octa and Dodeca was obtained, which is significant for the impact-resistance design and energy-absorption evaluation of porous structures.

show abstract

“…Do et al 18 summarized the scaffold structure design method based on homogenization and the Voronoi tessellation by controlling the density variable. Liu et al 22 optimized the design approach with a random Voronoi structure for better mechanical properties. Lin et al 23 studied the effect of different density gradients on the energy absorption of Voronoi structures.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and permeability properties of porous scaffolds developed by a Voronoi tessellation for bone tissue engineering

Zhao

Yao

et al. 2022

J. Mater. Chem. B

View full text Add to dashboard Cite

show abstract

A design method of Voronoi porous structures with graded relative elasticity distribution for functionally gradient porous materials

Cited by 15 publications

References 44 publications

Vorogrid: A static‐aware variable‐density Voronoi mesh to design the tube structure tessellation of tall buildings

Vorogrid: A static‐aware variable‐density Voronoi mesh to design the tube structure tessellation of tall buildings

Numerical Investigation of Impact Behavior of Strut-Based Cellular Structures Designed by Spatial Voronoi Tessellation

Mechanical and permeability properties of porous scaffolds developed by a Voronoi tessellation for bone tissue engineering

Contact Info

Product

Resources

About