Energy absorption performance of hexagonal multi-cell tube with hierarchy under axial loading

Chen, Bingzhi; Wang, Xi; Gao, Feng

doi:10.1016/j.tws.2021.108392

Cited by 50 publications

(5 citation statements)

References 68 publications

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“…The friction coefficient between the rigid plate and structure was set to 0.15 [18]. The self-contact condition was set to prevent the structures from penetrating each other during compression [38]. To ensure high computational efficiency and high computational accuracy, and to control the system kinetic energy to less than 5%, the mesh was analyzed for convergence and the element size was set to 0.2 mm.…”

Section: Numerical Modelingmentioning

confidence: 99%

Deformation and Energy Absorption Performance of Functionally Graded TPMS Structures Fabricated by Selective Laser Melting

Song,

Wang,

et al. 2024

Applied Sciences

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Triply periodic minimal surface (TPMS) structures have unique geometries and excellent mechanical properties, which have attracted much attention in many fields. However, the relationship between different filling forms and different directions of functionally graded TPMS structures on energy absorption has not been fully studied. In this study, a functionally graded strategy was proposed to investigate the effect of filling form and direction gradient on the energy absorption of TPMS structures. The design of functionally graded Gyroid and Diamond TPMS cellular structures with multiple forms was characterized, and the structures were fabricated using additive manufacturing technology. The effects of uniformity and different directional gradients on the deformation and energy absorption properties of the structures were studied experimentally and numerically. According to the compression test results, it was found that different filling forms of the TPMS structure behave differently in terms of yield plateau and deformation pattern, and the sheet structures can develop a better deformation pattern to enhance energy absorption capacity. Functionally graded sheet Diamond TPMS cellular structures along the compression direction exhibit a 32% reduction in initial peak force, providing more advantages in structural deformation and energy absorption. More closely, it is possible to further reduce the initial peak force, delay the densification point, and thus increase the energy absorption capacity by designing functionally graded sheet Diamond TPMS based cellular structures. The results of this study provide valuable guidance for the design of high-performance impact-protection components.

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Section: Numerical Modelingmentioning

confidence: 99%

Deformation and Energy Absorption Performance of Functionally Graded TPMS Structures Fabricated by Selective Laser Melting

Song,

Wang,

et al. 2024

Applied Sciences

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“…In recent years, researchers have systematically studied the axial compression performance and energy absorption capabilities of tubular structures with different cross-sections, such as regular circular tubes, 5 square tubes, 6 as well as polygonal tubes, 7,8 through experiments and finite element numerical analysiss. For instance, Researchers such as Koloushani et al 9 and Wu et al 10 have investigated the deformation modes of circular thinwalled tubes.…”

Section: Introductionmentioning

confidence: 99%

3D woven tubular composites with bamboo‐structures for enhanced energy absorption: Designing, manufacturing and performance analysis

Wen,

Qian,

Gao

et al. 2024

Polymer Composites

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Abstract3D woven tubular composites (3D‐WTC), known for their lightweight and high‐strength characteristics, are widely used in various energy‐absorbing components. To enhance the energy absorption capacity of 3D‐WTC, this study conducted a mechanical analysis of bamboo tube structures and proposed concentric circular nested biomimetic structures with “single tube + double ribs” and “double tubes + double ribs.” 3D woven tubular composites with bamboo‐structures (3DWTC‐Bamboo) were fabricated using the vacuum‐assisted resin transfer molding (VARTM) process. Axial compression tests were conducted using a universal testing machine to reveal and discuss the energy absorption capacity and failure modes of 3DWTC‐Bamboo. The results showed that 3DWTC‐Bamboo with a “double tube + double ribs” concentric circular nested biomimetic structures performed exceptionally, with a peak load of 28.93KN and specific energy absorption of 7.74 J·g−1. The failure mode was a hybrid of “rib folding + tube wall buckling.” Finally, finite element analysis of the stress distribution during the compression of 3DWTC‐Bamboo was conducted using ABAQUS, which validated the experimental results. In summary, this work provides a reference for structural innovation in 3D‐WTC and further expands its application in the field of energy absorption.Highlights Propose “single tube + double ribs” and “double tubes + double ribs” structures. Introducing the “rib” structures to enhance the local strength/stiffness. Test results show that 3DWTC‐Bamboo has great potential in energy absorption. The “ribs” can increase the local strength/stiffness of the tube structures.

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“…The escalating demand for energy absorbent structures, paired with the need for more efficient use of materials, has led to a wide range of designs in the form of porous sandwiches [6][7][8], honeycomb [6,[9][10][11], and foams [12][13][14][15]. Thin-walled multi-cell columns exhibit excellent mechanical properties and optimal energy absorption when subjected to axial compressive load [16][17][18][19]. Concerning standard honeycomb patterns, despite the possibility to implement hierarchical configurations with tunable mechanical properties, limitations arise when dealing with their high production costs, structural preparation barriers, and limited feasibility in large-scale industrial applications [10].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Energy Absorbent Bioinspired Lattice Structures

Greco

Buccino

et al. 2023

J Bionic Eng

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The increasing demand for energy absorbent structures, paired with the need for more efficient use of materials in a wide range of engineering fields, has led to an extensive range of designs in the porous forms of sandwiches, honeycomb, and foams. To achieve an even better performance, an ingenious solution is to learn how biological structures adjust their configurations to absorb energy without catastrophic failure. In this study, we have attempted to blend the shape freedom, offered by additive manufacturing techniques, with the biomimetic approach, to propose new lattice structures for energy absorbent applications. To this aim we have combined multiple bio-inspirational sources for the design of optimized configurations under compressive loads. Periodic lattice structures are fabricated based on the designed unit cell geometries and studied using experimental and computational strategies. The individual effect of each bio-inspired feature has been evaluated on the energy absorbance performance of the designed structure. Based on the design parameters of the lattices, a tuning between the strength and energy absorption could be obtained, paving the way for transition within a wide range of real-life applicative scenarios.

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Energy absorption performance of hexagonal multi-cell tube with hierarchy under axial loading

Cited by 50 publications

References 68 publications

Deformation and Energy Absorption Performance of Functionally Graded TPMS Structures Fabricated by Selective Laser Melting

Deformation and Energy Absorption Performance of Functionally Graded TPMS Structures Fabricated by Selective Laser Melting

3D woven tubular composites with bamboo‐structures for enhanced energy absorption: Designing, manufacturing and performance analysis

Design and Analysis of Energy Absorbent Bioinspired Lattice Structures

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