Design, mechanical properties and energy absorption capability of graded-thickness triply periodic minimal surface structures fabricated by selective laser melting

Fan, Xiaodong; Tang, Qian; Feng, Qiang; Ma, Shuai; Song, Jun; Jin, Mengxia; Guo, Fuyu; Jin, Peng

doi:10.1016/j.ijmecsci.2021.106586

Cited by 103 publications

(39 citation statements)

References 27 publications

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“…Starting from the above boundaries, the novel conceptual design of 3D printable bricks investigates how to use minimal surfaces to realize the internal geometry of the bricks. In particular, periodic minimal surfaces are used in this work because previous research has demonstrated the advantages of such shapes for 3D printing, including high mechanical properties, low pressure drop, and elastic-plastic damage [20,26,27].…”

Section: Novel Conception and Designmentioning

confidence: 99%

“…Indeed, the external shape is generated according to the classical bricks (rectangular parallelepiped), while the internal geometries are developed starting from the well-known periodic minimal surfaces (surface that locally minimizes its area) [18,19]. Such geometries are chosen for their well-known ability to provide effective mechanical properties and energy absorption capability [20,21]. The research identifies the most effective internal shape of the bricks to be printed by considering six different typologies of minimal surfaces and three different configurations of internal cells with a total of 18 parametric models.…”

Section: Introductionmentioning

confidence: 99%

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The New Boundaries of 3D-Printed Clay Bricks Design: Printability of Complex Internal Geometries

et al. 2022

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The building construction sector is undergoing one of the most profound transformations towards the digital transition of production. In recent decades, the advent of a novel technology for the 3D printing of clay opened up new sustainable possibilities in construction. Some architectural applications of 3D-printed clay bricks with simple internal configurations are being developed around the world. On the other hand, the full potential of 3D-printed bricks for building production is still unknown. Scientific studies about the design and printability of 3D-printed bricks exploiting complex internal geometries are completely missing in the related literature. This paper explores the new boundaries of 3D-printed clay bricks realized with a sustainable extrusion-based 3D clay printing process by proposing a novel conception, design, and analysis. In particular, the proposed methodological approach includes: (i) conception and design; (ii) parametric modeling; (iii) simulation of printability; and (iv) prototyping. The new design and conception aim to fully exploit the potential of 3D printing to realize complex internal geometry in a 3D-printed brick. To this aim, the research investigates the printability of internal configuration generated by using geometries with well-known remarkable mechanical properties, such as periodic minimal surfaces. In conclusion, the results are validated by a wide prototyping campaign.

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Section: Novel Conception and Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The New Boundaries of 3D-Printed Clay Bricks Design: Printability of Complex Internal Geometries

et al. 2022

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“…Cellular material structures (such as honeycomb structure [ 1 , 2 ], sandwich structure [ 3 , 4 ], and lattice structure [ 5 , 6 , 7 ], i.e.,) are widely used in aerospace [ 8 ], automobile manufacturing [ 9 ], life science [ 10 , 11 ] and other fields due to lightweight [ 12 , 13 ] and high energy absorbing capacities [ 14 , 15 ]. The design of existing cellular structures is usually inspired by the natural topology structures in the world.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Al-Si10-Mg P-TPMS Structure Fabricated by Selective Laser Melting and a Unified Mathematical Model with Geometrical Parameter

Zhang

Xie

et al. 2023

Materials

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Compared with the traditional lattice structure, the triply periodic minimal surface (TPMS) structure can avoid stress concentration effectively. Here, it is promising in the fields of lightweight and energy absorption. However, the number of structural parameters and mechanical properties of the TPMS structure is plentiful, and the relationship between them is unclassified. In this paper, for the first time, a unified mathematical model was proposed to establish the relationship between TPMS structural design parameters and mechanical properties. Fifteen primitive models were designed by changing the structural parameters (level-set value C and thickness T) and manufacturing by selective laser melting. The geometric defects and surface quality of the structures were explored by optical microscope and scanning electron microscopy (SEM). The mechanical properties were investigated by quasi-static compression test and finite element simulation. The influence of building direction on structural mechanical behavior (failure mode, stress-strain curve) was studied. The real mechanical properties (Young’s modulus and plateau stress) of the structure could be predicted according to different C and T combinations. Finally, the energy absorption characteristics were explored. The results showed that when the C value is 0.6 in the range of 0–0.6, the energy absorption performance of the structure is at the maximum level.

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“…[12][13][14] NPR materials are expected to significantly improve the mechanical properties by ensuring larger compressive strength, better elasticity, more robust structure, and higher fatigue resistance. [2,[15][16][17][18] Fundamentally, the deformation performance of porous materials is dominated by the alignment and orientation of basic microelements. Therefore, the related global mechanical properties and PR performance can be modulated using a microstructural multiscale design and artificial manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

Twin‐Structured Graphene Metamaterials with Anomalous Mechanical Properties

et al. 2022

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Design, mechanical properties and energy absorption capability of graded-thickness triply periodic minimal surface structures fabricated by selective laser melting

Cited by 103 publications

References 27 publications

The New Boundaries of 3D-Printed Clay Bricks Design: Printability of Complex Internal Geometries

The New Boundaries of 3D-Printed Clay Bricks Design: Printability of Complex Internal Geometries

Mechanical Behavior of Al-Si10-Mg P-TPMS Structure Fabricated by Selective Laser Melting and a Unified Mathematical Model with Geometrical Parameter

Twin‐Structured Graphene Metamaterials with Anomalous Mechanical Properties

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