In-plane compressive behavior of a novel self-similar hierarchical honeycomb with design-oriented crashworthiness

Liang, Hui; Wang, Qiang; Pu, Yongfeng; Zhao, Ying; Ma, Fangwu

doi:10.1016/j.ijmecsci.2021.106723

Cited by 45 publications

(16 citation statements)

References 62 publications

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“…The vertex-based self-similar hierarchical honeycomb has been shown to have better stiffness, strength, and energy absorption. [239][240][241][242][243] Liang et al designed a self-similar hierarchical honeycomb by adding smaller hexagons at the center and vertex of the hexagonal honeycomb (Figure 13h). [239] From the deformation mode, it is known that as the strain increases, the honeycomb exhibits the shapes of double-X, single-X, and I at the macro level (Figure 13i).…”

Section: Nonauxetic Honeycombmentioning

confidence: 99%

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Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Dai

et al. 2023

Advanced Science

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The natural design and coupling of biological structures are the root of realizing the high strength, toughness, and unique functional properties of biomaterials. Advanced architecture design is applied to many materials, including metal materials, inorganic nonmetallic materials, polymer materials, and so on. To improve the performance of advanced materials, the designed architecture can be enhanced by bionics of biological structure, optimization of structural parameters, and coupling of multiple types of structures. Herein, the progress of structural materials is reviewed, the strengthening mechanisms of different types of structures are highlighted, and the impact of architecture design on the performance of advanced materials is discussed. Architecture design can improve the properties of materials at the micro level, such as mechanical, electrical, and thermal conductivity. The synergistic effect of structure makes traditional materials move toward advanced functional materials, thus enriching the macroproperties of materials. Finally, the challenges and opportunities of structural innovation of advanced materials in improving material properties are discussed.

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Section: Nonauxetic Honeycombmentioning

confidence: 99%

“…The vertex hexagonal honeycombs start to deform (mode 2). h,i) Reproduced with permission [239]. Copyright 2021, Elsevier Ltd. j,k) Cross sections of hierarchical and fractal structures, and finite element models of thin-walled structures.…”

mentioning

confidence: 99%

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Dai

et al. 2023

Advanced Science

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“…In addition to the multitude of high mechanical properties which it provides, other attributes should be mentioned, such as good acoustic and thermal insulation and high impact energy absorption amongst others. [5][6][7] Structural hierarchy is introduced to the sandwich concept as a solution to further improve the weight specific mechanical properties. From the structural performance point of view, hierarchical cores provide even higher stiffness and strength when subjected to different loading scenarios (in-plane and out-of-plane compression, shear, bending etc.)…”

Section: Introductionmentioning

confidence: 99%

Out-of-plane compression mechanism of a novel hierarchical sandwich honeycomb core

Iftimiciuc

Derluyn²,

Pflug³

et al. 2023

Jnl of Sandwich Structures & Materials

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Honeycomb cores are used extensively in different sectors of industry to build advanced lightweight structures which take advantage of high stiffness-to-weight and strength-to-weight ratios. To further increase their mechanical properties, structural hierarchy is considered already from a conceptual point of view. It is proven to be highly effective in enhancing mechanical performance in different loading scenarios but affordable realisation of practical applications remains limited. The present study focuses on the out-of-plane compressive behaviour of a novel hierarchical sandwich honeycomb core with an emphasis on compressive strength, both in virtual and in experimental testing. The finite element model is validated for through-the-thickness compressive loading by physical experiments and it can subsequently be used for further structural optimization. The paper concludes with a comparison between the proposed hierarchical structure and conventional expanded honeycombs. The performance analysis highlights the advantages of the introduction of structural hierarchy to the state-of-the art honeycomb and it shows a high potential for the use in the construction of sandwich panels and parts.

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“…Functionally gradient arrangement is an effective way for tailoring the deformation mode and energy absorption of honeycombs under both low and high crushing velocities. [16] Also, properly introducing hierarchy in hexagonal honeycomb has the potential to further improve the energy absorption, for instance, substituting the solid walls of conventional hexagonal honeycomb with substructures, [17,18] adding smaller hexagons in the center and the vertex position of the hexagonal honeycomb, [19] and replacing every three-wall vertex of a regular hexagonal lattice with a smaller regular hexagon, triangle, and circle. [20][21][22][23] The hierarchical designs on the conventional hexagonal honeycomb have been extended to the reentrant hexagonal configuration.…”

Section: Introductionmentioning

confidence: 99%

In‐Plane Crushing Behaviors of Hexagonal Honeycombs with Hollow‐Circle Joint under Different Compressive Velocities

Chen

Zhao

Peijun

2023

Physica Status Solidi (b)

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The in‐plane crushing behaviors of hierarchical hexagonal honeycombs, structured by replacing every three‐wall vertex of both the conventional and reentrant hexagonal honeycombs with a small hollow‐circle, are investigated herein. The finite element (FE) models are first verified by an empirical formula from the literature and then further used to simulate the in‐plane crushing behaviors of the honeycombs under different compressive velocities. The deformation mode, plateau stress, and specific energy absorption (SEA) are studied based on the FE simulations. With respect to the conventional hierarchical honeycombs, the reentrant hierarchical honeycombs, in most instances, are found to exhibit higher plateau stress but lower SEA. It is remarkable that the hierarchical hexagonal honeycombs exhibit higher plateau stress and SEA than the basic hexagonal ones, which indicates that the hierarchical design is effective in improving both the impact resistance and energy absorption capabilities of the honeycombs.

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In-plane compressive behavior of a novel self-similar hierarchical honeycomb with design-oriented crashworthiness

Cited by 45 publications

References 62 publications

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Out-of-plane compression mechanism of a novel hierarchical sandwich honeycomb core

In‐Plane Crushing Behaviors of Hexagonal Honeycombs with Hollow‐Circle Joint under Different Compressive Velocities

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