Ballistic impact analyses of foam-filled double-arrow auxetic structure

Liu, Jinlin; Yang, Wanchun; Liu, Jiayi; Liu, Jingxi; Huang, Wei

doi:10.1016/j.tws.2022.110173

Cited by 17 publications

(2 citation statements)

References 21 publications

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“…A thorough analysis of the structure was conducted using computational and experimental approaches to compare the auxeticity and Poisson's ratio with existing structures. Meanwhile, Liu et al [9] addressed the impact analysis of foam-filled double-arrow auxetic structures and evaluated the influence of filled foam on their performance. In this context, Guo et al [10] undertook theoretical, computational, and experimental studies on the quasi-static compression tests of a unique elliptical-shaped anti-chiral auxetic structure to evaluate the effects of arc geometry on auxeticity.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations into 3D printed hybrid auxetic structures for load-bearing and energy absorption applications

Bankar,

Das,

Sharma

2024

Smart Mater. Struct.

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Auxetic structures possess negative Poisson’s ratio due to their unique geometrical configuration. It also offers enhanced indentation resistance, superior energy absorption capacity, excellent impact resistance, higher compressive strength, and other exceptional mechanical properties. In this study, multiple hybrid auxetic structures of three novel geometries have been designed by considering different sets of geometric parameters to numerically investigate the mechanical behaviors of the structures. The energy absorption properties and Poisson’s ratio of the developed hybrid auxetic structures have been measured under quasi-static compressive and bending loads. The numerically optimized structures from each of the three different geometries have been fabricated of acrylonitrile butadiene styrene using fused deposition modeling. Additionally, the simulated results have been experimentally validated. The validation studies have shown close agreement of their performances with the simulated results. Finally, comparative analyses of energy absorption performances have also been performed to select the most suitable structure for impact-resistant applications. Moreover, it has been observed that structure-2 exhibits superior performance in terms of maximum load-bearing capacity of 3395 N. On the other hand, structure-3 has the maximum energy absorption capacity of 51902 N.mm which is 4.85% higher than structure-1 and structure-2. Similarly, three-point bending test results have revealed that structure-2 performs better in terms of energy absorption capacity (10864 N.mm). Besides this, the effects of loading direction on deformation patterns and mechanical responses of the structures have been observed due to the changes in deformation mechanism. The high-velocity (8 m.s−1) impact test results have also confirmed the suitability of structure-2 for crashworthiness applications. The comparative findings derived from this study contribute significantly in developing lightweight, energy-absorbent, and impact-resistant auxetic core-sandwiched structures for civil, defense, and automobile sectors.

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Section: Introductionmentioning

confidence: 99%

Experimental investigations into 3D printed hybrid auxetic structures for load-bearing and energy absorption applications

Bankar,

Das,

Sharma

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

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“…A study of the SEA at the start of densification revealed that the HG, BCP, and CP structures all outperformed the traditional auxetic structures in terms of their abilities to absorb energy [6]. When foam-filled and unfilled double-arrow auxetic structures were subjected to a ballistic impact test, Liu et al discovered that the foam-filled structure had enhanced energy absorption capabilities [7]. Guo et al investigated the double arrow structure with plate lattice and truss lattice.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization of FDM printed bio-inspired double arrow head structures

Sanjay,

Joshua,

Aravind Raj

2023

Eng. Res. Express

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Biomimetic structures draw their inspiration from nature. Biomimetic structures aim to improve strength, flexibility, and energy efficiency. Safety equipment, aircraft, automotive, and medical equipment incorporate biomimetic structures. In recent days, biomimetic structures were modified by researchers to enhance their mechanical properties. In this study, novel double arrowhead structures were manufactured using material extrusion technology, and the quasi-static compression tests were carried out in the Universal Testing Machine. Finally, the results demonstrated that the highest compressive strength is 13.29 MPa recorded on a modified novel solid square double arrowhead structure. Once more, the solid square double arrowhead structure has more specific strength than every other structure. A greater specific strength indicates that a structure is capable of withstanding greater forces while minimising its weight. In order to provide direction for the practical applications of lightweight materials, this research compares the truss double arrowhead structures with the solid double arrow head structures.

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Toward enhanced mechanical rigidity: additive manufacturing of auxetic tubes with PU core and comparative analysis of unique structural behaviors

Pereira,

Gomes,

Gomes

2024

J Braz. Soc. Mech. Sci. Eng.

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Ballistic impact analyses of foam-filled double-arrow auxetic structure

Cited by 17 publications

References 21 publications

Experimental investigations into 3D printed hybrid auxetic structures for load-bearing and energy absorption applications

Experimental investigations into 3D printed hybrid auxetic structures for load-bearing and energy absorption applications

Mechanical characterization of FDM printed bio-inspired double arrow head structures

Toward enhanced mechanical rigidity: additive manufacturing of auxetic tubes with PU core and comparative analysis of unique structural behaviors

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