Finite Element Analysis of the Influence of the Covering Auxetic Layer of Plate on the Contact Pressure

Stręk, Tomasz; Matuszewska, Agata; Jopek, Hubert

doi:10.1002/pssb.201700103

Cited by 29 publications

(18 citation statements)

References 57 publications

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“…Another paper by Strek's group, Finite element analysis of the influence of the covering auxetic layer of a plate on the contact pressure (Strek, Matuszewska, and Jopek) , looks into the effect of having a semi‐cylinder bar pushing into a clamped auxetic plate or a conventional plate covered with an auxetic layer. It is shown, through a validated approach based on the augmented Lagrangian method, that the Poisson's ratio affects both the length of extent of the contact boundary as well as the contact pressure values.…”

mentioning

confidence: 99%

Auxetics and Other Systems of Anomalous Characteristics

2017

Physica Status Solidi (b)

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confidence: 99%

Auxetics and Other Systems of Anomalous Characteristics

2017

Physica Status Solidi (b)

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“…Kumar et al [56] proposed the divergent star-shaped structure based on the traditional star-shaped structure and analyzed the elastic wave transmission characteristics through simulation and experiment. The star-shaped metamaterials can achieve negative Poisson's ratio [57][58][59] because of their concave feature. Recent works [32,56] show that the star-shaped structures with negative Poisson's ratio effect can achieve hybrid resonance behaviors and extensive acoustic properties.…”

Section: Introductionmentioning

confidence: 99%

Multiple Re‐Entrant Star‐Shaped Honeycomb with Double Negative Parameters and Bandgap Properties

Liu

Ren

Liu

et al. 2022

Physica Status Solidi (b)

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Achieving bandgaps and double negative properties with single‐phase metamaterial in the low‐frequency range remains a challenge. Currently, acoustic metamaterials with double negative parameters are made of different materials, which can limit their application and design. Herein, a single‐phase multiple re‐entrant star‐shaped honeycomb (MRSSH) is designed and the double negative parameters and bandgaps are simulated. The numerical results show that the MRSSH exhibits three bandgaps and double negative characteristics (negative effective mass density and negative effective modulus) within a certain frequency range. The formation mechanics of bandgaps are investigated by analyzing the vibration modes. Moreover, the effects of geometry parameters such as internal concave angle and re‐entrant on the bandgaps and vibration modes of the MRSSH are investigated. By adjusting the geometry parameters, the dispersion curves and bandgap distribution can be tuned simultaneously. This study provides a new idea for designing a single‐phase lightweight metamaterial that can apply to noised reduction, vibration control, and super‐resolution imaging.

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“…The group of re-entrant geometries was later intensively studied and included, among others, such representatives as star re-entrant [11][12][13], double arrowhead [14][15][16], hierarchical star re-entrant [17] and augmented re-entrant honeycomb [18][19][20]. Analitycally and numerically investigated properties of auxetic materials and structures showed unusual properties, from negative compressibility [21,22], increased hardness and values of contact pressure [23,24], enhanced energy and vibration absorption [25,26], to non-intuitive behaviour [27].…”

Section: Introductionmentioning

confidence: 99%

Extremely Non-Auxetic Behavior of a Typical Auxetic Microstructure Due to Its Material Properties

et al. 2021

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The re-entrant honeycomb microstructure is one of the most famous, typical examples of an auxetic structure. The re-entrant geometries also include other members as, among others, the star re-entrant geometries with various symmetries. In this paper, we focus on one of them, having a 6-fold symmetry axis. The investigated systems consist of binary hard discs (two-dimensional particles with two slightly different sizes, interacting through infinitely repulsive pairwise potential), from which different structures, based on the mentioned geometry, were formed. To study the elastic properties of the systems, computer simulations using the Monte Carlo method in isobaric-isothermal ensemble with varying shape of the periodic box were performed. The results show that all the considered systems are isotropic and not auxetic—their Poisson’s ratio is positive in each case. Moreover, Poisson’s ratios of the majority of examined structures tend to +1 with increasing pressure, which is the upper limit for two-dimensional isotropic media, thus they can be recognized as the ideal non-auxetics in appropriate thermodynamic conditions. The results obtained contradict the common belief that the unique properties of metamaterials result solely from their microstructure and indicate that the material itself can be crucial.

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Finite Element Analysis of the Influence of the Covering Auxetic Layer of Plate on the Contact Pressure

Cited by 29 publications

References 57 publications

Auxetics and Other Systems of Anomalous Characteristics

Auxetics and Other Systems of Anomalous Characteristics

Multiple Re‐Entrant Star‐Shaped Honeycomb with Double Negative Parameters and Bandgap Properties

Extremely Non-Auxetic Behavior of a Typical Auxetic Microstructure Due to Its Material Properties

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